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Finding the Fourth Proportional to 549.88, 824.84 and 165.13

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Solution

The fourth proportional to 549.88, 824.84 and 165.13 is: 247.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    549.88 : 824.84 = 165.13 : x
  2. Step 2: Convert to fraction form
    549.88/824.84 = 165.13/x
  3. Step 3: Cross multiply
    549.88x = 824.84 × 165.13
  4. Step 4: Simplify right side
    549.88x = 136,205.83
  5. Step 5: Solve for x
    x = 136,205.83/549.88
  6. Step 6: Final answer
    x = 247.70

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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.