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Finding the Fourth Proportional to 261,537.46, 392,254.51 and 71,948.91

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Solution

The fourth proportional to 261,537.46, 392,254.51 and 71,948.91 is: 107,909.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,537.46 : 392,254.51 = 71,948.91 : x
  2. Step 2: Convert to fraction form
    261,537.46/392,254.51 = 71,948.91/x
  3. Step 3: Cross multiply
    261,537.46x = 392,254.51 × 71,948.91
  4. Step 4: Simplify right side
    261,537.46x = 28,222,284,437.08
  5. Step 5: Solve for x
    x = 28,222,284,437.08/261,537.46
  6. Step 6: Final answer
    x = 107,909.15

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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.