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Finding the Fourth Proportional to 366.56, 549.48 and 147.13

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Solution

The fourth proportional to 366.56, 549.48 and 147.13 is: 220.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    366.56 : 549.48 = 147.13 : x
  2. Step 2: Convert to fraction form
    366.56/549.48 = 147.13/x
  3. Step 3: Cross multiply
    366.56x = 549.48 × 147.13
  4. Step 4: Simplify right side
    366.56x = 80,842.25
  5. Step 5: Solve for x
    x = 80,842.25/366.56
  6. Step 6: Final answer
    x = 220.54

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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.