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Finding the Fourth Proportional to 360.56, 540.20 and 187.12

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Solution

The fourth proportional to 360.56, 540.20 and 187.12 is: 280.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    360.56 : 540.20 = 187.12 : x
  2. Step 2: Convert to fraction form
    360.56/540.20 = 187.12/x
  3. Step 3: Cross multiply
    360.56x = 540.20 × 187.12
  4. Step 4: Simplify right side
    360.56x = 101,082.22
  5. Step 5: Solve for x
    x = 101,082.22/360.56
  6. Step 6: Final answer
    x = 280.35

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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.