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Finding the Fourth Proportional to 223,619.52, 308,593.20 and 126,841.80

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Solution

The fourth proportional to 223,619.52, 308,593.20 and 126,841.80 is: 175,040.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,619.52 : 308,593.20 = 126,841.80 : x
  2. Step 2: Convert to fraction form
    223,619.52/308,593.20 = 126,841.80/x
  3. Step 3: Cross multiply
    223,619.52x = 308,593.20 × 126,841.80
  4. Step 4: Simplify right side
    223,619.52x = 39,142,516,955.76
  5. Step 5: Solve for x
    x = 39,142,516,955.76/223,619.52
  6. Step 6: Final answer
    x = 175,040.70

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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.