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Finding the Fourth Proportional to 155.85, 233.19 and 93.93

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Solution

The fourth proportional to 155.85, 233.19 and 93.93 is: 140.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    155.85 : 233.19 = 93.93 : x
  2. Step 2: Convert to fraction form
    155.85/233.19 = 93.93/x
  3. Step 3: Cross multiply
    155.85x = 233.19 × 93.93
  4. Step 4: Simplify right side
    155.85x = 21,903.77
  5. Step 5: Solve for x
    x = 21,903.77/155.85
  6. Step 6: Final answer
    x = 140.54

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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.