Home / 319,456.26-479,367.57-129,881.64

Finding the Fourth Proportional to 319,456.26, 479,367.57 and 129,881.64

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Solution

The fourth proportional to 319,456.26, 479,367.57 and 129,881.64 is: 194,896.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,456.26 : 479,367.57 = 129,881.64 : x
  2. Step 2: Convert to fraction form
    319,456.26/479,367.57 = 129,881.64/x
  3. Step 3: Cross multiply
    319,456.26x = 479,367.57 × 129,881.64
  4. Step 4: Simplify right side
    319,456.26x = 62,261,046,154.41
  5. Step 5: Solve for x
    x = 62,261,046,154.41/319,456.26
  6. Step 6: Final answer
    x = 194,896.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.