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Finding the Fourth Proportional to 431,401.28, 595,324.16 and 240,411.20

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Solution

The fourth proportional to 431,401.28, 595,324.16 and 240,411.20 is: 331,762.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,401.28 : 595,324.16 = 240,411.20 : x
  2. Step 2: Convert to fraction form
    431,401.28/595,324.16 = 240,411.20/x
  3. Step 3: Cross multiply
    431,401.28x = 595,324.16 × 240,411.20
  4. Step 4: Simplify right side
    431,401.28x = 143,122,595,694.59
  5. Step 5: Solve for x
    x = 143,122,595,694.59/431,401.28
  6. Step 6: Final answer
    x = 331,762.10

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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.