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Finding the Fourth Proportional to 217,679.23, 326,494.34 and 75,498.31

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Solution

The fourth proportional to 217,679.23, 326,494.34 and 75,498.31 is: 113,238.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,679.23 : 326,494.34 = 75,498.31 : x
  2. Step 2: Convert to fraction form
    217,679.23/326,494.34 = 75,498.31/x
  3. Step 3: Cross multiply
    217,679.23x = 326,494.34 × 75,498.31
  4. Step 4: Simplify right side
    217,679.23x = 24,649,768,884.60
  5. Step 5: Solve for x
    x = 24,649,768,884.60/217,679.23
  6. Step 6: Final answer
    x = 113,238.96

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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.