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Finding the Fourth Proportional to 308,761.74, 425,955.96 and 181,379.88

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Solution

The fourth proportional to 308,761.74, 425,955.96 and 181,379.88 is: 250,224.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,761.74 : 425,955.96 = 181,379.88 : x
  2. Step 2: Convert to fraction form
    308,761.74/425,955.96 = 181,379.88/x
  3. Step 3: Cross multiply
    308,761.74x = 425,955.96 × 181,379.88
  4. Step 4: Simplify right side
    308,761.74x = 77,259,840,910.08
  5. Step 5: Solve for x
    x = 77,259,840,910.08/308,761.74
  6. Step 6: Final answer
    x = 250,224.79

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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.