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Finding the Fourth Proportional to 281,355.58, 422,100.52 and 91,816.30

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Solution

The fourth proportional to 281,355.58, 422,100.52 and 91,816.30 is: 137,746.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,355.58 : 422,100.52 = 91,816.30 : x
  2. Step 2: Convert to fraction form
    281,355.58/422,100.52 = 91,816.30/x
  3. Step 3: Cross multiply
    281,355.58x = 422,100.52 × 91,816.30
  4. Step 4: Simplify right side
    281,355.58x = 38,755,708,272.56
  5. Step 5: Solve for x
    x = 38,755,708,272.56/281,355.58
  6. Step 6: Final answer
    x = 137,746.36

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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.