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Finding the Fourth Proportional to 227.52, 313.88 and 144.59

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Solution

The fourth proportional to 227.52, 313.88 and 144.59 is: 199.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    227.52 : 313.88 = 144.59 : x
  2. Step 2: Convert to fraction form
    227.52/313.88 = 144.59/x
  3. Step 3: Cross multiply
    227.52x = 313.88 × 144.59
  4. Step 4: Simplify right side
    227.52x = 45,381.62
  5. Step 5: Solve for x
    x = 45,381.62/227.52
  6. Step 6: Final answer
    x = 199.46

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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.