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Finding the Fourth Proportional to 220,577.70, 330,647.85 and 108,165.90

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Solution

The fourth proportional to 220,577.70, 330,647.85 and 108,165.90 is: 162,141.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,577.70 : 330,647.85 = 108,165.90 : x
  2. Step 2: Convert to fraction form
    220,577.70/330,647.85 = 108,165.90/x
  3. Step 3: Cross multiply
    220,577.70x = 330,647.85 × 108,165.90
  4. Step 4: Simplify right side
    220,577.70x = 35,764,822,278.32
  5. Step 5: Solve for x
    x = 35,764,822,278.32/220,577.70
  6. Step 6: Final answer
    x = 162,141.60

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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.