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Finding the Fourth Proportional to 292,239.27, 438,375.96 and 81,893.61

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Solution

The fourth proportional to 292,239.27, 438,375.96 and 81,893.61 is: 122,845.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,239.27 : 438,375.96 = 81,893.61 : x
  2. Step 2: Convert to fraction form
    292,239.27/438,375.96 = 81,893.61/x
  3. Step 3: Cross multiply
    292,239.27x = 438,375.96 × 81,893.61
  4. Step 4: Simplify right side
    292,239.27x = 35,900,189,901.62
  5. Step 5: Solve for x
    x = 35,900,189,901.62/292,239.27
  6. Step 6: Final answer
    x = 122,845.19

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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.