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Finding the Fourth Proportional to 549.01, 816.46 and 531.71

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Solution

The fourth proportional to 549.01, 816.46 and 531.71 is: 790.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    549.01 : 816.46 = 531.71 : x
  2. Step 2: Convert to fraction form
    549.01/816.46 = 531.71/x
  3. Step 3: Cross multiply
    549.01x = 816.46 × 531.71
  4. Step 4: Simplify right side
    549.01x = 434,117.29
  5. Step 5: Solve for x
    x = 434,117.29/549.01
  6. Step 6: Final answer
    x = 790.73

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.