Home / 231,360.26-319,274.91-129,384.56

Finding the Fourth Proportional to 231,360.26, 319,274.91 and 129,384.56

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Solution

The fourth proportional to 231,360.26, 319,274.91 and 129,384.56 is: 178,549.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,360.26 : 319,274.91 = 129,384.56 : x
  2. Step 2: Convert to fraction form
    231,360.26/319,274.91 = 129,384.56/x
  3. Step 3: Cross multiply
    231,360.26x = 319,274.91 × 129,384.56
  4. Step 4: Simplify right side
    231,360.26x = 41,309,243,749.39
  5. Step 5: Solve for x
    x = 41,309,243,749.39/231,360.26
  6. Step 6: Final answer
    x = 178,549.44

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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.