Home / 231,321.20-347,037.24-79,515.68

Finding the Fourth Proportional to 231,321.20, 347,037.24 and 79,515.68

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Solution

The fourth proportional to 231,321.20, 347,037.24 and 79,515.68 is: 119,292.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,321.20 : 347,037.24 = 79,515.68 : x
  2. Step 2: Convert to fraction form
    231,321.20/347,037.24 = 79,515.68/x
  3. Step 3: Cross multiply
    231,321.20x = 347,037.24 × 79,515.68
  4. Step 4: Simplify right side
    231,321.20x = 27,594,902,123.92
  5. Step 5: Solve for x
    x = 27,594,902,123.92/231,321.20
  6. Step 6: Final answer
    x = 119,292.58

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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.