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Finding the Fourth Proportional to 155.41, 233.12 and 114.71

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Solution

The fourth proportional to 155.41, 233.12 and 114.71 is: 172.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    155.41 : 233.12 = 114.71 : x
  2. Step 2: Convert to fraction form
    155.41/233.12 = 114.71/x
  3. Step 3: Cross multiply
    155.41x = 233.12 × 114.71
  4. Step 4: Simplify right side
    155.41x = 26,739.46
  5. Step 5: Solve for x
    x = 26,739.46/155.41
  6. Step 6: Final answer
    x = 172.06

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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.