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Finding the Fourth Proportional to 342,104.40, 512,793.72 and 131,651.28

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Solution

The fourth proportional to 342,104.40, 512,793.72 and 131,651.28 is: 197,337.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,104.40 : 512,793.72 = 131,651.28 : x
  2. Step 2: Convert to fraction form
    342,104.40/512,793.72 = 131,651.28/x
  3. Step 3: Cross multiply
    342,104.40x = 512,793.72 × 131,651.28
  4. Step 4: Simplify right side
    342,104.40x = 67,509,949,613.96
  5. Step 5: Solve for x
    x = 67,509,949,613.96/342,104.40
  6. Step 6: Final answer
    x = 197,337.27

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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.