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Finding the Fourth Proportional to 155.52, 234.29 and 135.07

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Solution

The fourth proportional to 155.52, 234.29 and 135.07 is: 203.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    155.52 : 234.29 = 135.07 : x
  2. Step 2: Convert to fraction form
    155.52/234.29 = 135.07/x
  3. Step 3: Cross multiply
    155.52x = 234.29 × 135.07
  4. Step 4: Simplify right side
    155.52x = 31,645.30
  5. Step 5: Solve for x
    x = 31,645.30/155.52
  6. Step 6: Final answer
    x = 203.48

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.