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Finding the Fourth Proportional to 217,515.01, 300,169.39 and 126,863.86

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Solution

The fourth proportional to 217,515.01, 300,169.39 and 126,863.86 is: 175,071.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,515.01 : 300,169.39 = 126,863.86 : x
  2. Step 2: Convert to fraction form
    217,515.01/300,169.39 = 126,863.86/x
  3. Step 3: Cross multiply
    217,515.01x = 300,169.39 × 126,863.86
  4. Step 4: Simplify right side
    217,515.01x = 38,080,647,469.25
  5. Step 5: Solve for x
    x = 38,080,647,469.25/217,515.01
  6. Step 6: Final answer
    x = 175,071.35

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1.5x scale

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.