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Finding the Fourth Proportional to 149.04, 206.63 and 140.84

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Solution

The fourth proportional to 149.04, 206.63 and 140.84 is: 195.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    149.04 : 206.63 = 140.84 : x
  2. Step 2: Convert to fraction form
    149.04/206.63 = 140.84/x
  3. Step 3: Cross multiply
    149.04x = 206.63 × 140.84
  4. Step 4: Simplify right side
    149.04x = 29,101.77
  5. Step 5: Solve for x
    x = 29,101.77/149.04
  6. Step 6: Final answer
    x = 195.26

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.