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Finding the Fourth Proportional to 292,731.76, 439,098.70 and 71,115.76

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Solution

The fourth proportional to 292,731.76, 439,098.70 and 71,115.76 is: 106,673.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,731.76 : 439,098.70 = 71,115.76 : x
  2. Step 2: Convert to fraction form
    292,731.76/439,098.70 = 71,115.76/x
  3. Step 3: Cross multiply
    292,731.76x = 439,098.70 × 71,115.76
  4. Step 4: Simplify right side
    292,731.76x = 31,226,837,765.51
  5. Step 5: Solve for x
    x = 31,226,837,765.51/292,731.76
  6. Step 6: Final answer
    x = 106,673.90

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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.