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Finding the Fourth Proportional to 281,524.04, 422,327.28 and 81,818.48

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Solution

The fourth proportional to 281,524.04, 422,327.28 and 81,818.48 is: 122,739.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,524.04 : 422,327.28 = 81,818.48 : x
  2. Step 2: Convert to fraction form
    281,524.04/422,327.28 = 81,818.48/x
  3. Step 3: Cross multiply
    281,524.04x = 422,327.28 × 81,818.48
  4. Step 4: Simplify right side
    281,524.04x = 34,554,176,112.13
  5. Step 5: Solve for x
    x = 34,554,176,112.13/281,524.04
  6. Step 6: Final answer
    x = 122,739.70

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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.