Home / 217,839.22-326,886.72-91,469.75

Finding the Fourth Proportional to 217,839.22, 326,886.72 and 91,469.75

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Solution

The fourth proportional to 217,839.22, 326,886.72 and 91,469.75 is: 137,258.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,839.22 : 326,886.72 = 91,469.75 : x
  2. Step 2: Convert to fraction form
    217,839.22/326,886.72 = 91,469.75/x
  3. Step 3: Cross multiply
    217,839.22x = 326,886.72 × 91,469.75
  4. Step 4: Simplify right side
    217,839.22x = 29,900,244,579.27
  5. Step 5: Solve for x
    x = 29,900,244,579.27/217,839.22
  6. Step 6: Final answer
    x = 137,258.32

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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.