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Finding the Fourth Proportional to 154.46, 231.00 and 93.18

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Solution

The fourth proportional to 154.46, 231.00 and 93.18 is: 139.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    154.46 : 231.00 = 93.18 : x
  2. Step 2: Convert to fraction form
    154.46/231.00 = 93.18/x
  3. Step 3: Cross multiply
    154.46x = 231.00 × 93.18
  4. Step 4: Simplify right side
    154.46x = 21,523.67
  5. Step 5: Solve for x
    x = 21,523.67/154.46
  6. Step 6: Final answer
    x = 139.35

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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.