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Finding the Fourth Proportional to 302.80, 454.19 and 195.27

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Solution

The fourth proportional to 302.80, 454.19 and 195.27 is: 292.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    302.80 : 454.19 = 195.27 : x
  2. Step 2: Convert to fraction form
    302.80/454.19 = 195.27/x
  3. Step 3: Cross multiply
    302.80x = 454.19 × 195.27
  4. Step 4: Simplify right side
    302.80x = 88,690.17
  5. Step 5: Solve for x
    x = 88,690.17/302.80
  6. Step 6: Final answer
    x = 292.90

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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.