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Finding the Fourth Proportional to 558.47, 765.66 and 549.96

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Solution

The fourth proportional to 558.47, 765.66 and 549.96 is: 754.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    558.47 : 765.66 = 549.96 : x
  2. Step 2: Convert to fraction form
    558.47/765.66 = 549.96/x
  3. Step 3: Cross multiply
    558.47x = 765.66 × 549.96
  4. Step 4: Simplify right side
    558.47x = 421,082.37
  5. Step 5: Solve for x
    x = 421,082.37/558.47
  6. Step 6: Final answer
    x = 754.00

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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.