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Finding the Fourth Proportional to 155.95, 233.83 and 133.14

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Solution

The fourth proportional to 155.95, 233.83 and 133.14 is: 199.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    155.95 : 233.83 = 133.14 : x
  2. Step 2: Convert to fraction form
    155.95/233.83 = 133.14/x
  3. Step 3: Cross multiply
    155.95x = 233.83 × 133.14
  4. Step 4: Simplify right side
    155.95x = 31,132.13
  5. Step 5: Solve for x
    x = 31,132.13/155.95
  6. Step 6: Final answer
    x = 199.63

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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.