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Finding the Fourth Proportional to 218.41, 301.26 and 147.54

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Solution

The fourth proportional to 218.41, 301.26 and 147.54 is: 203.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    218.41 : 301.26 = 147.54 : x
  2. Step 2: Convert to fraction form
    218.41/301.26 = 147.54/x
  3. Step 3: Cross multiply
    218.41x = 301.26 × 147.54
  4. Step 4: Simplify right side
    218.41x = 44,447.90
  5. Step 5: Solve for x
    x = 44,447.90/218.41
  6. Step 6: Final answer
    x = 203.51

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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.