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Finding the Fourth Proportional to 308,701.71, 425,873.19 and 181,319.88

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Solution

The fourth proportional to 308,701.71, 425,873.19 and 181,319.88 is: 250,142.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,701.71 : 425,873.19 = 181,319.88 : x
  2. Step 2: Convert to fraction form
    308,701.71/425,873.19 = 181,319.88/x
  3. Step 3: Cross multiply
    308,701.71x = 425,873.19 × 181,319.88
  4. Step 4: Simplify right side
    308,701.71x = 77,219,275,706.02
  5. Step 5: Solve for x
    x = 77,219,275,706.02/308,701.71
  6. Step 6: Final answer
    x = 250,142.04

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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.