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Finding the Fourth Proportional to 342,403.52, 513,752.32 and 132,189.08

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Solution

The fourth proportional to 342,403.52, 513,752.32 and 132,189.08 is: 198,340.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,403.52 : 513,752.32 = 132,189.08 : x
  2. Step 2: Convert to fraction form
    342,403.52/513,752.32 = 132,189.08/x
  3. Step 3: Cross multiply
    342,403.52x = 513,752.32 × 132,189.08
  4. Step 4: Simplify right side
    342,403.52x = 67,912,446,528.67
  5. Step 5: Solve for x
    x = 67,912,446,528.67/342,403.52
  6. Step 6: Final answer
    x = 198,340.39

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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.