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Finding the Fourth Proportional to 461,463.55, 636,818.49 and 257,512.30

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Solution

The fourth proportional to 461,463.55, 636,818.49 and 257,512.30 is: 355,366.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,463.55 : 636,818.49 = 257,512.30 : x
  2. Step 2: Convert to fraction form
    461,463.55/636,818.49 = 257,512.30/x
  3. Step 3: Cross multiply
    461,463.55x = 636,818.49 × 257,512.30
  4. Step 4: Simplify right side
    461,463.55x = 163,988,592,450.38
  5. Step 5: Solve for x
    x = 163,988,592,450.38/461,463.55
  6. Step 6: Final answer
    x = 355,366.30

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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.