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Finding the Fourth Proportional to 552.47, 767.75 and 545.58

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Solution

The fourth proportional to 552.47, 767.75 and 545.58 is: 758.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    552.47 : 767.75 = 545.58 : x
  2. Step 2: Convert to fraction form
    552.47/767.75 = 545.58/x
  3. Step 3: Cross multiply
    552.47x = 767.75 × 545.58
  4. Step 4: Simplify right side
    552.47x = 418,866.32
  5. Step 5: Solve for x
    x = 418,866.32/552.47
  6. Step 6: Final answer
    x = 758.18

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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.