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Finding the Fourth Proportional to 275,236.32, 412,912.80 and 88,379.04

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Solution

The fourth proportional to 275,236.32, 412,912.80 and 88,379.04 is: 132,587.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,236.32 : 412,912.80 = 88,379.04 : x
  2. Step 2: Convert to fraction form
    275,236.32/412,912.80 = 88,379.04/x
  3. Step 3: Cross multiply
    275,236.32x = 412,912.80 × 88,379.04
  4. Step 4: Simplify right side
    275,236.32x = 36,492,836,867.71
  5. Step 5: Solve for x
    x = 36,492,836,867.71/275,236.32
  6. Step 6: Final answer
    x = 132,587.29

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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.