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Finding the Fourth Proportional to 155.03, 232.20 and 103.59

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Solution

The fourth proportional to 155.03, 232.20 and 103.59 is: 155.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    155.03 : 232.20 = 103.59 : x
  2. Step 2: Convert to fraction form
    155.03/232.20 = 103.59/x
  3. Step 3: Cross multiply
    155.03x = 232.20 × 103.59
  4. Step 4: Simplify right side
    155.03x = 24,053.60
  5. Step 5: Solve for x
    x = 24,053.60/155.03
  6. Step 6: Final answer
    x = 155.16

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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.