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Finding the Fourth Proportional to 181,290.50, 271,741.35 and 87,589.70

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Solution

The fourth proportional to 181,290.50, 271,741.35 and 87,589.70 is: 131,290.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,290.50 : 271,741.35 = 87,589.70 : x
  2. Step 2: Convert to fraction form
    181,290.50/271,741.35 = 87,589.70/x
  3. Step 3: Cross multiply
    181,290.50x = 271,741.35 × 87,589.70
  4. Step 4: Simplify right side
    181,290.50x = 23,801,743,324.10
  5. Step 5: Solve for x
    x = 23,801,743,324.10/181,290.50
  6. Step 6: Final answer
    x = 131,290.63

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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.