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Finding the Fourth Proportional to 227.49, 314.03 and 144.66

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Solution

The fourth proportional to 227.49, 314.03 and 144.66 is: 199.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    227.49 : 314.03 = 144.66 : x
  2. Step 2: Convert to fraction form
    227.49/314.03 = 144.66/x
  3. Step 3: Cross multiply
    227.49x = 314.03 × 144.66
  4. Step 4: Simplify right side
    227.49x = 45,426.86
  5. Step 5: Solve for x
    x = 45,426.86/227.49
  6. Step 6: Final answer
    x = 199.69

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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.