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Finding the Fourth Proportional to 381,337.71, 572,009.91 and 97,028.61

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Solution

The fourth proportional to 381,337.71, 572,009.91 and 97,028.61 is: 145,543.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,337.71 : 572,009.91 = 97,028.61 : x
  2. Step 2: Convert to fraction form
    381,337.71/572,009.91 = 97,028.61/x
  3. Step 3: Cross multiply
    381,337.71x = 572,009.91 × 97,028.61
  4. Step 4: Simplify right side
    381,337.71x = 55,501,326,473.53
  5. Step 5: Solve for x
    x = 55,501,326,473.53/381,337.71
  6. Step 6: Final answer
    x = 145,543.77

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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.