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Finding the Fourth Proportional to 155.00, 231.95 and 94.25

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Solution

The fourth proportional to 155.00, 231.95 and 94.25 is: 141.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    155.00 : 231.95 = 94.25 : x
  2. Step 2: Convert to fraction form
    155.00/231.95 = 94.25/x
  3. Step 3: Cross multiply
    155.00x = 231.95 × 94.25
  4. Step 4: Simplify right side
    155.00x = 21,859.66
  5. Step 5: Solve for x
    x = 21,859.66/155.00
  6. Step 6: Final answer
    x = 141.03

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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.