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Finding the Fourth Proportional to 549.08, 753.90 and 534.81

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Solution

The fourth proportional to 549.08, 753.90 and 534.81 is: 734.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    549.08 : 753.90 = 534.81 : x
  2. Step 2: Convert to fraction form
    549.08/753.90 = 534.81/x
  3. Step 3: Cross multiply
    549.08x = 753.90 × 534.81
  4. Step 4: Simplify right side
    549.08x = 403,193.26
  5. Step 5: Solve for x
    x = 403,193.26/549.08
  6. Step 6: Final answer
    x = 734.31

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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.