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Finding the Fourth Proportional to 549.64, 753.59 and 548.02

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Solution

The fourth proportional to 549.64, 753.59 and 548.02 is: 751.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    549.64 : 753.59 = 548.02 : x
  2. Step 2: Convert to fraction form
    549.64/753.59 = 548.02/x
  3. Step 3: Cross multiply
    549.64x = 753.59 × 548.02
  4. Step 4: Simplify right side
    549.64x = 412,982.39
  5. Step 5: Solve for x
    x = 412,982.39/549.64
  6. Step 6: Final answer
    x = 751.37

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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.