Home / 231,738.54-319,625.10-155,343.80

Finding the Fourth Proportional to 231,738.54, 319,625.10 and 155,343.80

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Solution

The fourth proportional to 231,738.54, 319,625.10 and 155,343.80 is: 214,257.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,738.54 : 319,625.10 = 155,343.80 : x
  2. Step 2: Convert to fraction form
    231,738.54/319,625.10 = 155,343.80/x
  3. Step 3: Cross multiply
    231,738.54x = 319,625.10 × 155,343.80
  4. Step 4: Simplify right side
    231,738.54x = 49,651,776,011.25
  5. Step 5: Solve for x
    x = 49,651,776,011.25/231,738.54
  6. Step 6: Final answer
    x = 214,257.74

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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.