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Finding the Fourth Proportional to 536.17, 739.06 and 395.85

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Solution

The fourth proportional to 536.17, 739.06 and 395.85 is: 545.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    536.17 : 739.06 = 395.85 : x
  2. Step 2: Convert to fraction form
    536.17/739.06 = 395.85/x
  3. Step 3: Cross multiply
    536.17x = 739.06 × 395.85
  4. Step 4: Simplify right side
    536.17x = 292,556.90
  5. Step 5: Solve for x
    x = 292,556.90/536.17
  6. Step 6: Final answer
    x = 545.64

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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.