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Finding the Fourth Proportional to 291,733.60, 437,561.52 and 81,353.92

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Solution

The fourth proportional to 291,733.60, 437,561.52 and 81,353.92 is: 122,020.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,733.60 : 437,561.52 = 81,353.92 : x
  2. Step 2: Convert to fraction form
    291,733.60/437,561.52 = 81,353.92/x
  3. Step 3: Cross multiply
    291,733.60x = 437,561.52 × 81,353.92
  4. Step 4: Simplify right side
    291,733.60x = 35,597,344,893.16
  5. Step 5: Solve for x
    x = 35,597,344,893.16/291,733.60
  6. Step 6: Final answer
    x = 122,020.04

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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.