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Finding the Fourth Proportional to 154.61, 230.80 and 134.10

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Solution

The fourth proportional to 154.61, 230.80 and 134.10 is: 200.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    154.61 : 230.80 = 134.10 : x
  2. Step 2: Convert to fraction form
    154.61/230.80 = 134.10/x
  3. Step 3: Cross multiply
    154.61x = 230.80 × 134.10
  4. Step 4: Simplify right side
    154.61x = 30,950.45
  5. Step 5: Solve for x
    x = 30,950.45/154.61
  6. Step 6: Final answer
    x = 200.19

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.