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Finding the Fourth Proportional to 149.06, 205.25 and 141.77

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Solution

The fourth proportional to 149.06, 205.25 and 141.77 is: 195.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    149.06 : 205.25 = 141.77 : x
  2. Step 2: Convert to fraction form
    149.06/205.25 = 141.77/x
  3. Step 3: Cross multiply
    149.06x = 205.25 × 141.77
  4. Step 4: Simplify right side
    149.06x = 29,097.62
  5. Step 5: Solve for x
    x = 29,097.62/149.06
  6. Step 6: Final answer
    x = 195.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.