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Finding the Fourth Proportional to 230.66, 346.16 and 149.67

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Solution

The fourth proportional to 230.66, 346.16 and 149.67 is: 224.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    230.66 : 346.16 = 149.67 : x
  2. Step 2: Convert to fraction form
    230.66/346.16 = 149.67/x
  3. Step 3: Cross multiply
    230.66x = 346.16 × 149.67
  4. Step 4: Simplify right side
    230.66x = 51,810.90
  5. Step 5: Solve for x
    x = 51,810.90/230.66
  6. Step 6: Final answer
    x = 224.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.