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Finding the Fourth Proportional to 303.38, 453.91 and 187.53

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Solution

The fourth proportional to 303.38, 453.91 and 187.53 is: 280.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    303.38 : 453.91 = 187.53 : x
  2. Step 2: Convert to fraction form
    303.38/453.91 = 187.53/x
  3. Step 3: Cross multiply
    303.38x = 453.91 × 187.53
  4. Step 4: Simplify right side
    303.38x = 85,124.28
  5. Step 5: Solve for x
    x = 85,124.28/303.38
  6. Step 6: Final answer
    x = 280.59

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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.