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Finding the Fourth Proportional to 543.16, 754.56 and 538.08

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Solution

The fourth proportional to 543.16, 754.56 and 538.08 is: 747.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    543.16 : 754.56 = 538.08 : x
  2. Step 2: Convert to fraction form
    543.16/754.56 = 538.08/x
  3. Step 3: Cross multiply
    543.16x = 754.56 × 538.08
  4. Step 4: Simplify right side
    543.16x = 406,013.64
  5. Step 5: Solve for x
    x = 406,013.64/543.16
  6. Step 6: Final answer
    x = 747.50

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.