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Finding the Fourth Proportional to 397.22, 595.85 and 108.66

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Solution

The fourth proportional to 397.22, 595.85 and 108.66 is: 163.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    397.22 : 595.85 = 108.66 : x
  2. Step 2: Convert to fraction form
    397.22/595.85 = 108.66/x
  3. Step 3: Cross multiply
    397.22x = 595.85 × 108.66
  4. Step 4: Simplify right side
    397.22x = 64,744.52
  5. Step 5: Solve for x
    x = 64,744.52/397.22
  6. Step 6: Final answer
    x = 163.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.