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Finding the Fourth Proportional to 366.78, 549.48 and 306.18

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Solution

The fourth proportional to 366.78, 549.48 and 306.18 is: 458.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    366.78 : 549.48 = 306.18 : x
  2. Step 2: Convert to fraction form
    366.78/549.48 = 306.18/x
  3. Step 3: Cross multiply
    366.78x = 549.48 × 306.18
  4. Step 4: Simplify right side
    366.78x = 168,240.93
  5. Step 5: Solve for x
    x = 168,240.93/366.78
  6. Step 6: Final answer
    x = 458.70

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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.