Home / 231,279.33-319,166.01-129,308.43

Finding the Fourth Proportional to 231,279.33, 319,166.01 and 129,308.43

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Solution

The fourth proportional to 231,279.33, 319,166.01 and 129,308.43 is: 178,445.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,279.33 : 319,166.01 = 129,308.43 : x
  2. Step 2: Convert to fraction form
    231,279.33/319,166.01 = 129,308.43/x
  3. Step 3: Cross multiply
    231,279.33x = 319,166.01 × 129,308.43
  4. Step 4: Simplify right side
    231,279.33x = 41,270,855,662.46
  5. Step 5: Solve for x
    x = 41,270,855,662.46/231,279.33
  6. Step 6: Final answer
    x = 178,445.93

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1.5x scale

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.