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Finding the Fourth Proportional to 161.95, 224.44 and 158.87

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Solution

The fourth proportional to 161.95, 224.44 and 158.87 is: 220.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    161.95 : 224.44 = 158.87 : x
  2. Step 2: Convert to fraction form
    161.95/224.44 = 158.87/x
  3. Step 3: Cross multiply
    161.95x = 224.44 × 158.87
  4. Step 4: Simplify right side
    161.95x = 35,657.03
  5. Step 5: Solve for x
    x = 35,657.03/161.95
  6. Step 6: Final answer
    x = 220.17

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.