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Finding the Fourth Proportional to 291,425.97, 437,100.67 and 91,747.40

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Solution

The fourth proportional to 291,425.97, 437,100.67 and 91,747.40 is: 137,609.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,425.97 : 437,100.67 = 91,747.40 : x
  2. Step 2: Convert to fraction form
    291,425.97/437,100.67 = 91,747.40/x
  3. Step 3: Cross multiply
    291,425.97x = 437,100.67 × 91,747.40
  4. Step 4: Simplify right side
    291,425.97x = 40,102,850,010.76
  5. Step 5: Solve for x
    x = 40,102,850,010.76/291,425.97
  6. Step 6: Final answer
    x = 137,609.05

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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.