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Finding the Fourth Proportional to 431,402.28, 595,325.54 and 240,412.20

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Solution

The fourth proportional to 431,402.28, 595,325.54 and 240,412.20 is: 331,763.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,402.28 : 595,325.54 = 240,412.20 : x
  2. Step 2: Convert to fraction form
    431,402.28/595,325.54 = 240,412.20/x
  3. Step 3: Cross multiply
    431,402.28x = 595,325.54 × 240,412.20
  4. Step 4: Simplify right side
    431,402.28x = 143,123,522,787.59
  5. Step 5: Solve for x
    x = 143,123,522,787.59/431,402.28
  6. Step 6: Final answer
    x = 331,763.48

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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.