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Finding the Fourth Proportional to 230.58, 318.19 and 150.66

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Solution

The fourth proportional to 230.58, 318.19 and 150.66 is: 207.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    230.58 : 318.19 = 150.66 : x
  2. Step 2: Convert to fraction form
    230.58/318.19 = 150.66/x
  3. Step 3: Cross multiply
    230.58x = 318.19 × 150.66
  4. Step 4: Simplify right side
    230.58x = 47,938.51
  5. Step 5: Solve for x
    x = 47,938.51/230.58
  6. Step 6: Final answer
    x = 207.90

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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.