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Finding the Fourth Proportional to 551.97, 767.06 and 545.08

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Solution

The fourth proportional to 551.97, 767.06 and 545.08 is: 757.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    551.97 : 767.06 = 545.08 : x
  2. Step 2: Convert to fraction form
    551.97/767.06 = 545.08/x
  3. Step 3: Cross multiply
    551.97x = 767.06 × 545.08
  4. Step 4: Simplify right side
    551.97x = 418,109.06
  5. Step 5: Solve for x
    x = 418,109.06/551.97
  6. Step 6: Final answer
    x = 757.49

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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.