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Finding the Fourth Proportional to 637,000.40, 955,648.20 and 216,276.26

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Solution

The fourth proportional to 637,000.40, 955,648.20 and 216,276.26 is: 324,464.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,000.40 : 955,648.20 = 216,276.26 : x
  2. Step 2: Convert to fraction form
    637,000.40/955,648.20 = 216,276.26/x
  3. Step 3: Cross multiply
    637,000.40x = 955,648.20 × 216,276.26
  4. Step 4: Simplify right side
    637,000.40x = 206,684,018,571.73
  5. Step 5: Solve for x
    x = 206,684,018,571.73/637,000.40
  6. Step 6: Final answer
    x = 324,464.50

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.