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Finding the Fourth Proportional to 293,530.60, 440,004.30 and 143,648.20

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Solution

The fourth proportional to 293,530.60, 440,004.30 and 143,648.20 is: 215,329.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,530.60 : 440,004.30 = 143,648.20 : x
  2. Step 2: Convert to fraction form
    293,530.60/440,004.30 = 143,648.20/x
  3. Step 3: Cross multiply
    293,530.60x = 440,004.30 × 143,648.20
  4. Step 4: Simplify right side
    293,530.60x = 63,205,825,687.26
  5. Step 5: Solve for x
    x = 63,205,825,687.26/293,530.60
  6. Step 6: Final answer
    x = 215,329.60

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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.