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Finding the Fourth Proportional to 397.01, 595.37 and 136.94

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Solution

The fourth proportional to 397.01, 595.37 and 136.94 is: 205.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    397.01 : 595.37 = 136.94 : x
  2. Step 2: Convert to fraction form
    397.01/595.37 = 136.94/x
  3. Step 3: Cross multiply
    397.01x = 595.37 × 136.94
  4. Step 4: Simplify right side
    397.01x = 81,530.30
  5. Step 5: Solve for x
    x = 81,530.30/397.01
  6. Step 6: Final answer
    x = 205.36

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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.