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Finding the Fourth Proportional to 155.53, 233.08 and 104.23

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Solution

The fourth proportional to 155.53, 233.08 and 104.23 is: 156.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    155.53 : 233.08 = 104.23 : x
  2. Step 2: Convert to fraction form
    155.53/233.08 = 104.23/x
  3. Step 3: Cross multiply
    155.53x = 233.08 × 104.23
  4. Step 4: Simplify right side
    155.53x = 24,293.96
  5. Step 5: Solve for x
    x = 24,293.96/155.53
  6. Step 6: Final answer
    x = 156.20

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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.