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Finding the Fourth Proportional to 224.42, 336.62 and 70.35

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Solution

The fourth proportional to 224.42, 336.62 and 70.35 is: 105.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    224.42 : 336.62 = 70.35 : x
  2. Step 2: Convert to fraction form
    224.42/336.62 = 70.35/x
  3. Step 3: Cross multiply
    224.42x = 336.62 × 70.35
  4. Step 4: Simplify right side
    224.42x = 23,680.87
  5. Step 5: Solve for x
    x = 23,680.87/224.42
  6. Step 6: Final answer
    x = 105.52

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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.