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Finding the Fourth Proportional to 291,757.68, 437,621.03 and 89,353.73

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Solution

The fourth proportional to 291,757.68, 437,621.03 and 89,353.73 is: 134,025.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,757.68 : 437,621.03 = 89,353.73 : x
  2. Step 2: Convert to fraction form
    291,757.68/437,621.03 = 89,353.73/x
  3. Step 3: Cross multiply
    291,757.68x = 437,621.03 × 89,353.73
  4. Step 4: Simplify right side
    291,757.68x = 39,103,072,339.30
  5. Step 5: Solve for x
    x = 39,103,072,339.30/291,757.68
  6. Step 6: Final answer
    x = 134,025.85

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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.