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Finding the Fourth Proportional to 549.26, 756.69 and 451.58

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Solution

The fourth proportional to 549.26, 756.69 and 451.58 is: 622.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    549.26 : 756.69 = 451.58 : x
  2. Step 2: Convert to fraction form
    549.26/756.69 = 451.58/x
  3. Step 3: Cross multiply
    549.26x = 756.69 × 451.58
  4. Step 4: Simplify right side
    549.26x = 341,706.07
  5. Step 5: Solve for x
    x = 341,706.07/549.26
  6. Step 6: Final answer
    x = 622.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.