Home / 231,711.30-347,129.55-119,007.90

Finding the Fourth Proportional to 231,711.30, 347,129.55 and 119,007.90

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Solution

The fourth proportional to 231,711.30, 347,129.55 and 119,007.90 is: 178,287.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,711.30 : 347,129.55 = 119,007.90 : x
  2. Step 2: Convert to fraction form
    231,711.30/347,129.55 = 119,007.90/x
  3. Step 3: Cross multiply
    231,711.30x = 347,129.55 × 119,007.90
  4. Step 4: Simplify right side
    231,711.30x = 41,311,158,773.45
  5. Step 5: Solve for x
    x = 41,311,158,773.45/231,711.30
  6. Step 6: Final answer
    x = 178,287.20

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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.