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Finding the Fourth Proportional to 183.35, 275.17 and 87.23

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Solution

The fourth proportional to 183.35, 275.17 and 87.23 is: 130.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    183.35 : 275.17 = 87.23 : x
  2. Step 2: Convert to fraction form
    183.35/275.17 = 87.23/x
  3. Step 3: Cross multiply
    183.35x = 275.17 × 87.23
  4. Step 4: Simplify right side
    183.35x = 24,003.55
  5. Step 5: Solve for x
    x = 24,003.55/183.35
  6. Step 6: Final answer
    x = 130.91

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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.