Home / 231,373.65-319,293.38-129,397.95

Finding the Fourth Proportional to 231,373.65, 319,293.38 and 129,397.95

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Solution

The fourth proportional to 231,373.65, 319,293.38 and 129,397.95 is: 178,567.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,373.65 : 319,293.38 = 129,397.95 : x
  2. Step 2: Convert to fraction form
    231,373.65/319,293.38 = 129,397.95/x
  3. Step 3: Cross multiply
    231,373.65x = 319,293.38 × 129,397.95
  4. Step 4: Simplify right side
    231,373.65x = 41,315,908,173.58
  5. Step 5: Solve for x
    x = 41,315,908,173.58/231,373.65
  6. Step 6: Final answer
    x = 178,567.91

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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.