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Finding the Fourth Proportional to 166.03, 247.58 and 154.49

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Solution

The fourth proportional to 166.03, 247.58 and 154.49 is: 230.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    166.03 : 247.58 = 154.49 : x
  2. Step 2: Convert to fraction form
    166.03/247.58 = 154.49/x
  3. Step 3: Cross multiply
    166.03x = 247.58 × 154.49
  4. Step 4: Simplify right side
    166.03x = 38,248.63
  5. Step 5: Solve for x
    x = 38,248.63/166.03
  6. Step 6: Final answer
    x = 230.37

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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.