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Finding the Fourth Proportional to 362.16, 499.70 and 222.29

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Solution

The fourth proportional to 362.16, 499.70 and 222.29 is: 306.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    362.16 : 499.70 = 222.29 : x
  2. Step 2: Convert to fraction form
    362.16/499.70 = 222.29/x
  3. Step 3: Cross multiply
    362.16x = 499.70 × 222.29
  4. Step 4: Simplify right side
    362.16x = 111,074.70
  5. Step 5: Solve for x
    x = 111,074.70/362.16
  6. Step 6: Final answer
    x = 306.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.