Home / 331,976.76-497,964.15-142,314.18

Finding the Fourth Proportional to 331,976.76, 497,964.15 and 142,314.18

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Solution

The fourth proportional to 331,976.76, 497,964.15 and 142,314.18 is: 213,470.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,976.76 : 497,964.15 = 142,314.18 : x
  2. Step 2: Convert to fraction form
    331,976.76/497,964.15 = 142,314.18/x
  3. Step 3: Cross multiply
    331,976.76x = 497,964.15 × 142,314.18
  4. Step 4: Simplify right side
    331,976.76x = 70,867,359,676.65
  5. Step 5: Solve for x
    x = 70,867,359,676.65/331,976.76
  6. Step 6: Final answer
    x = 213,470.85

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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.