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Finding the Fourth Proportional to 149.03, 205.29 and 134.45

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Solution

The fourth proportional to 149.03, 205.29 and 134.45 is: 185.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    149.03 : 205.29 = 134.45 : x
  2. Step 2: Convert to fraction form
    149.03/205.29 = 134.45/x
  3. Step 3: Cross multiply
    149.03x = 205.29 × 134.45
  4. Step 4: Simplify right side
    149.03x = 27,600.21
  5. Step 5: Solve for x
    x = 27,600.21/149.03
  6. Step 6: Final answer
    x = 185.21

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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.