Home / 231,808.38-319,581.48-198,178.14

Finding the Fourth Proportional to 231,808.38, 319,581.48 and 198,178.14

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Solution

The fourth proportional to 231,808.38, 319,581.48 and 198,178.14 is: 273,217.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,808.38 : 319,581.48 = 198,178.14 : x
  2. Step 2: Convert to fraction form
    231,808.38/319,581.48 = 198,178.14/x
  3. Step 3: Cross multiply
    231,808.38x = 319,581.48 × 198,178.14
  4. Step 4: Simplify right side
    231,808.38x = 63,334,063,284.85
  5. Step 5: Solve for x
    x = 63,334,063,284.85/231,808.38
  6. Step 6: Final answer
    x = 273,217.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.