Home / 231,359.26-319,273.53-129,383.56

Finding the Fourth Proportional to 231,359.26, 319,273.53 and 129,383.56

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Solution

The fourth proportional to 231,359.26, 319,273.53 and 129,383.56 is: 178,548.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,359.26 : 319,273.53 = 129,383.56 : x
  2. Step 2: Convert to fraction form
    231,359.26/319,273.53 = 129,383.56/x
  3. Step 3: Cross multiply
    231,359.26x = 319,273.53 × 129,383.56
  4. Step 4: Simplify right side
    231,359.26x = 41,308,745,925.17
  5. Step 5: Solve for x
    x = 41,308,745,925.17/231,359.26
  6. Step 6: Final answer
    x = 178,548.06

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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.