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Finding the Fourth Proportional to 397.39, 595.99 and 180.91

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Solution

The fourth proportional to 397.39, 595.99 and 180.91 is: 271.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    397.39 : 595.99 = 180.91 : x
  2. Step 2: Convert to fraction form
    397.39/595.99 = 180.91/x
  3. Step 3: Cross multiply
    397.39x = 595.99 × 180.91
  4. Step 4: Simplify right side
    397.39x = 107,820.55
  5. Step 5: Solve for x
    x = 107,820.55/397.39
  6. Step 6: Final answer
    x = 271.32

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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.