Home / 231,314.22-319,171.95-129,341.70

Finding the Fourth Proportional to 231,314.22, 319,171.95 and 129,341.70

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Solution

The fourth proportional to 231,314.22, 319,171.95 and 129,341.70 is: 178,468.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,314.22 : 319,171.95 = 129,341.70 : x
  2. Step 2: Convert to fraction form
    231,314.22/319,171.95 = 129,341.70/x
  3. Step 3: Cross multiply
    231,314.22x = 319,171.95 × 129,341.70
  4. Step 4: Simplify right side
    231,314.22x = 41,282,242,605.32
  5. Step 5: Solve for x
    x = 41,282,242,605.32/231,314.22
  6. Step 6: Final answer
    x = 178,468.24

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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.