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Finding the Fourth Proportional to 431,472.71, 595,435.10 and 240,498.20

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Solution

The fourth proportional to 431,472.71, 595,435.10 and 240,498.20 is: 331,889.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,472.71 : 595,435.10 = 240,498.20 : x
  2. Step 2: Convert to fraction form
    431,472.71/595,435.10 = 240,498.20/x
  3. Step 3: Cross multiply
    431,472.71x = 595,435.10 × 240,498.20
  4. Step 4: Simplify right side
    431,472.71x = 143,201,065,587.15
  5. Step 5: Solve for x
    x = 143,201,065,587.15/431,472.71
  6. Step 6: Final answer
    x = 331,889.05

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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.