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Finding the Fourth Proportional to 308,481.58, 425,726.27 and 172,528.18

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Solution

The fourth proportional to 308,481.58, 425,726.27 and 172,528.18 is: 238,101.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,481.58 : 425,726.27 = 172,528.18 : x
  2. Step 2: Convert to fraction form
    308,481.58/425,726.27 = 172,528.18/x
  3. Step 3: Cross multiply
    308,481.58x = 425,726.27 × 172,528.18
  4. Step 4: Simplify right side
    308,481.58x = 73,449,777,908.29
  5. Step 5: Solve for x
    x = 73,449,777,908.29/308,481.58
  6. Step 6: Final answer
    x = 238,101.02

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1.5x scale

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.