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Finding the Fourth Proportional to 154.13, 230.76 and 93.08

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Solution

The fourth proportional to 154.13, 230.76 and 93.08 is: 139.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    154.13 : 230.76 = 93.08 : x
  2. Step 2: Convert to fraction form
    154.13/230.76 = 93.08/x
  3. Step 3: Cross multiply
    154.13x = 230.76 × 93.08
  4. Step 4: Simplify right side
    154.13x = 21,479.14
  5. Step 5: Solve for x
    x = 21,479.14/154.13
  6. Step 6: Final answer
    x = 139.36

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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.