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Finding the Fourth Proportional to 150.03, 224.78 and 68.70

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Solution

The fourth proportional to 150.03, 224.78 and 68.70 is: 102.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    150.03 : 224.78 = 68.70 : x
  2. Step 2: Convert to fraction form
    150.03/224.78 = 68.70/x
  3. Step 3: Cross multiply
    150.03x = 224.78 × 68.70
  4. Step 4: Simplify right side
    150.03x = 15,441.62
  5. Step 5: Solve for x
    x = 15,441.62/150.03
  6. Step 6: Final answer
    x = 102.93

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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.