Home / 342,385.11-513,299.34-142,854.17

Finding the Fourth Proportional to 342,385.11, 513,299.34 and 142,854.17

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Solution

The fourth proportional to 342,385.11, 513,299.34 and 142,854.17 is: 214,165.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,385.11 : 513,299.34 = 142,854.17 : x
  2. Step 2: Convert to fraction form
    342,385.11/513,299.34 = 142,854.17/x
  3. Step 3: Cross multiply
    342,385.11x = 513,299.34 × 142,854.17
  4. Step 4: Simplify right side
    342,385.11x = 73,326,948,610.75
  5. Step 5: Solve for x
    x = 73,326,948,610.75/342,385.11
  6. Step 6: Final answer
    x = 214,165.12

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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.