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Finding the Fourth Proportional to 302.49, 454.23 and 187.60

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Solution

The fourth proportional to 302.49, 454.23 and 187.60 is: 281.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    302.49 : 454.23 = 187.60 : x
  2. Step 2: Convert to fraction form
    302.49/454.23 = 187.60/x
  3. Step 3: Cross multiply
    302.49x = 454.23 × 187.60
  4. Step 4: Simplify right side
    302.49x = 85,213.55
  5. Step 5: Solve for x
    x = 85,213.55/302.49
  6. Step 6: Final answer
    x = 281.71

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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.