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Finding the Fourth Proportional to 538,481.66, 807,818.56 and 178,674.14

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Solution

The fourth proportional to 538,481.66, 807,818.56 and 178,674.14 is: 268,043.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,481.66 : 807,818.56 = 178,674.14 : x
  2. Step 2: Convert to fraction form
    538,481.66/807,818.56 = 178,674.14/x
  3. Step 3: Cross multiply
    538,481.66x = 807,818.56 × 178,674.14
  4. Step 4: Simplify right side
    538,481.66x = 144,336,286,484.04
  5. Step 5: Solve for x
    x = 144,336,286,484.04/538,481.66
  6. Step 6: Final answer
    x = 268,043.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.