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Finding the Fourth Proportional to 150.18, 226.15 and 131.15

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Solution

The fourth proportional to 150.18, 226.15 and 131.15 is: 197.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    150.18 : 226.15 = 131.15 : x
  2. Step 2: Convert to fraction form
    150.18/226.15 = 131.15/x
  3. Step 3: Cross multiply
    150.18x = 226.15 × 131.15
  4. Step 4: Simplify right side
    150.18x = 29,659.81
  5. Step 5: Solve for x
    x = 29,659.81/150.18
  6. Step 6: Final answer
    x = 197.50

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.