Home / 231,216.93-319,083.30-129,244.41

Finding the Fourth Proportional to 231,216.93, 319,083.30 and 129,244.41

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Solution

The fourth proportional to 231,216.93, 319,083.30 and 129,244.41 is: 178,359.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,216.93 : 319,083.30 = 129,244.41 : x
  2. Step 2: Convert to fraction form
    231,216.93/319,083.30 = 129,244.41/x
  3. Step 3: Cross multiply
    231,216.93x = 319,083.30 × 129,244.41
  4. Step 4: Simplify right side
    231,216.93x = 41,239,732,849.35
  5. Step 5: Solve for x
    x = 41,239,732,849.35/231,216.93
  6. Step 6: Final answer
    x = 178,359.49

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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.