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Finding the Fourth Proportional to 228,359.97, 315,127.06 and 126,375.88

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Solution

The fourth proportional to 228,359.97, 315,127.06 and 126,375.88 is: 174,393.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,359.97 : 315,127.06 = 126,375.88 : x
  2. Step 2: Convert to fraction form
    228,359.97/315,127.06 = 126,375.88/x
  3. Step 3: Cross multiply
    228,359.97x = 315,127.06 × 126,375.88
  4. Step 4: Simplify right side
    228,359.97x = 39,824,459,519.31
  5. Step 5: Solve for x
    x = 39,824,459,519.31/228,359.97
  6. Step 6: Final answer
    x = 174,393.35

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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.