Home / 331,645.20-497,470.14-141,945.72

Finding the Fourth Proportional to 331,645.20, 497,470.14 and 141,945.72

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Solution

The fourth proportional to 331,645.20, 497,470.14 and 141,945.72 is: 212,919.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,645.20 : 497,470.14 = 141,945.72 : x
  2. Step 2: Convert to fraction form
    331,645.20/497,470.14 = 141,945.72/x
  3. Step 3: Cross multiply
    331,645.20x = 497,470.14 × 141,945.72
  4. Step 4: Simplify right side
    331,645.20x = 70,613,757,200.80
  5. Step 5: Solve for x
    x = 70,613,757,200.80/331,645.20
  6. Step 6: Final answer
    x = 212,919.58

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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.