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Finding the Fourth Proportional to 168,394.70, 252,373.34 and 68,438.57

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Solution

The fourth proportional to 168,394.70, 252,373.34 and 68,438.57 is: 102,568.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,394.70 : 252,373.34 = 68,438.57 : x
  2. Step 2: Convert to fraction form
    168,394.70/252,373.34 = 68,438.57/x
  3. Step 3: Cross multiply
    168,394.70x = 252,373.34 × 68,438.57
  4. Step 4: Simplify right side
    168,394.70x = 17,272,068,891.66
  5. Step 5: Solve for x
    x = 17,272,068,891.66/168,394.70
  6. Step 6: Final answer
    x = 102,568.96

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1.5x scale

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.