Home / 217,778.85-326,513.84-84,546.81

Finding the Fourth Proportional to 217,778.85, 326,513.84 and 84,546.81

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Solution

The fourth proportional to 217,778.85, 326,513.84 and 84,546.81 is: 126,760.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,778.85 : 326,513.84 = 84,546.81 : x
  2. Step 2: Convert to fraction form
    217,778.85/326,513.84 = 84,546.81/x
  3. Step 3: Cross multiply
    217,778.85x = 326,513.84 × 84,546.81
  4. Step 4: Simplify right side
    217,778.85x = 27,605,703,170.12
  5. Step 5: Solve for x
    x = 27,605,703,170.12/217,778.85
  6. Step 6: Final answer
    x = 126,760.26

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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.