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Finding the Fourth Proportional to 224.60, 336.74 and 70.47

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Solution

The fourth proportional to 224.60, 336.74 and 70.47 is: 105.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    224.60 : 336.74 = 70.47 : x
  2. Step 2: Convert to fraction form
    224.60/336.74 = 70.47/x
  3. Step 3: Cross multiply
    224.60x = 336.74 × 70.47
  4. Step 4: Simplify right side
    224.60x = 23,729.72
  5. Step 5: Solve for x
    x = 23,729.72/224.60
  6. Step 6: Final answer
    x = 105.66

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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.