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Finding the Fourth Proportional to 291,644.07, 402,489.86 and 162,591.27

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Solution

The fourth proportional to 291,644.07, 402,489.86 and 162,591.27 is: 224,387.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,644.07 : 402,489.86 = 162,591.27 : x
  2. Step 2: Convert to fraction form
    291,644.07/402,489.86 = 162,591.27/x
  3. Step 3: Cross multiply
    291,644.07x = 402,489.86 × 162,591.27
  4. Step 4: Simplify right side
    291,644.07x = 65,441,337,499.52
  5. Step 5: Solve for x
    x = 65,441,337,499.52/291,644.07
  6. Step 6: Final answer
    x = 224,387.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.