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Finding the Fourth Proportional to 224.23, 336.38 and 70.12

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Solution

The fourth proportional to 224.23, 336.38 and 70.12 is: 105.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    224.23 : 336.38 = 70.12 : x
  2. Step 2: Convert to fraction form
    224.23/336.38 = 70.12/x
  3. Step 3: Cross multiply
    224.23x = 336.38 × 70.12
  4. Step 4: Simplify right side
    224.23x = 23,584.93
  5. Step 5: Solve for x
    x = 23,584.93/224.23
  6. Step 6: Final answer
    x = 105.18

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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.