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Finding the Fourth Proportional to 360,000.45, 496,797.50 and 198,866.75

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Solution

The fourth proportional to 360,000.45, 496,797.50 and 198,866.75 is: 274,434.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,000.45 : 496,797.50 = 198,866.75 : x
  2. Step 2: Convert to fraction form
    360,000.45/496,797.50 = 198,866.75/x
  3. Step 3: Cross multiply
    360,000.45x = 496,797.50 × 198,866.75
  4. Step 4: Simplify right side
    360,000.45x = 98,796,502,246.30
  5. Step 5: Solve for x
    x = 98,796,502,246.30/360,000.45
  6. Step 6: Final answer
    x = 274,434.39

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.