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Finding the Fourth Proportional to 223,272.28, 308,028.78 and 126,453.88

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Solution

The fourth proportional to 223,272.28, 308,028.78 and 126,453.88 is: 174,457.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,272.28 : 308,028.78 = 126,453.88 : x
  2. Step 2: Convert to fraction form
    223,272.28/308,028.78 = 126,453.88/x
  3. Step 3: Cross multiply
    223,272.28x = 308,028.78 × 126,453.88
  4. Step 4: Simplify right side
    223,272.28x = 38,951,434,382.67
  5. Step 5: Solve for x
    x = 38,951,434,382.67/223,272.28
  6. Step 6: Final answer
    x = 174,457.10

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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.