Home / 253,272.31-379,909.17-103,512.62

Finding the Fourth Proportional to 253,272.31, 379,909.17 and 103,512.62

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Solution

The fourth proportional to 253,272.31, 379,909.17 and 103,512.62 is: 155,269.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,272.31 : 379,909.17 = 103,512.62 : x
  2. Step 2: Convert to fraction form
    253,272.31/379,909.17 = 103,512.62/x
  3. Step 3: Cross multiply
    253,272.31x = 379,909.17 × 103,512.62
  4. Step 4: Simplify right side
    253,272.31x = 39,325,394,498.50
  5. Step 5: Solve for x
    x = 39,325,394,498.50/253,272.31
  6. Step 6: Final answer
    x = 155,269.22

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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.