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Finding the Fourth Proportional to 149.58, 223.83 and 135.81

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Solution

The fourth proportional to 149.58, 223.83 and 135.81 is: 203.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    149.58 : 223.83 = 135.81 : x
  2. Step 2: Convert to fraction form
    149.58/223.83 = 135.81/x
  3. Step 3: Cross multiply
    149.58x = 223.83 × 135.81
  4. Step 4: Simplify right side
    149.58x = 30,398.35
  5. Step 5: Solve for x
    x = 30,398.35/149.58
  6. Step 6: Final answer
    x = 203.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.