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Finding the Fourth Proportional to 549.18, 823.16 and 366.32

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Solution

The fourth proportional to 549.18, 823.16 and 366.32 is: 549.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    549.18 : 823.16 = 366.32 : x
  2. Step 2: Convert to fraction form
    549.18/823.16 = 366.32/x
  3. Step 3: Cross multiply
    549.18x = 823.16 × 366.32
  4. Step 4: Simplify right side
    549.18x = 301,542.94
  5. Step 5: Solve for x
    x = 301,542.94/549.18
  6. Step 6: Final answer
    x = 549.08

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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.