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Finding the Fourth Proportional to 155.85, 233.25 and 104.48

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Solution

The fourth proportional to 155.85, 233.25 and 104.48 is: 156.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    155.85 : 233.25 = 104.48 : x
  2. Step 2: Convert to fraction form
    155.85/233.25 = 104.48/x
  3. Step 3: Cross multiply
    155.85x = 233.25 × 104.48
  4. Step 4: Simplify right side
    155.85x = 24,368.79
  5. Step 5: Solve for x
    x = 24,368.79/155.85
  6. Step 6: Final answer
    x = 156.36

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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.