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Finding the Fourth Proportional to 366.74, 549.38 and 321.14

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Solution

The fourth proportional to 366.74, 549.38 and 321.14 is: 481.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    366.74 : 549.38 = 321.14 : x
  2. Step 2: Convert to fraction form
    366.74/549.38 = 321.14/x
  3. Step 3: Cross multiply
    366.74x = 549.38 × 321.14
  4. Step 4: Simplify right side
    366.74x = 176,427.89
  5. Step 5: Solve for x
    x = 176,427.89/366.74
  6. Step 6: Final answer
    x = 481.07

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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.