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Finding the Fourth Proportional to 301.11, 415.65 and 176.85

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Solution

The fourth proportional to 301.11, 415.65 and 176.85 is: 244.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    301.11 : 415.65 = 176.85 : x
  2. Step 2: Convert to fraction form
    301.11/415.65 = 176.85/x
  3. Step 3: Cross multiply
    301.11x = 415.65 × 176.85
  4. Step 4: Simplify right side
    301.11x = 73,507.70
  5. Step 5: Solve for x
    x = 73,507.70/301.11
  6. Step 6: Final answer
    x = 244.12

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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.