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Finding the Fourth Proportional to 549.70, 754.80 and 547.54

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Solution

The fourth proportional to 549.70, 754.80 and 547.54 is: 751.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    549.70 : 754.80 = 547.54 : x
  2. Step 2: Convert to fraction form
    549.70/754.80 = 547.54/x
  3. Step 3: Cross multiply
    549.70x = 754.80 × 547.54
  4. Step 4: Simplify right side
    549.70x = 413,283.19
  5. Step 5: Solve for x
    x = 413,283.19/549.70
  6. Step 6: Final answer
    x = 751.83

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.