Home / 217,972.86-326,960.41-66,171.26

Finding the Fourth Proportional to 217,972.86, 326,960.41 and 66,171.26

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Solution

The fourth proportional to 217,972.86, 326,960.41 and 66,171.26 is: 99,257.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,972.86 : 326,960.41 = 66,171.26 : x
  2. Step 2: Convert to fraction form
    217,972.86/326,960.41 = 66,171.26/x
  3. Step 3: Cross multiply
    217,972.86x = 326,960.41 × 66,171.26
  4. Step 4: Simplify right side
    217,972.86x = 21,635,382,299.82
  5. Step 5: Solve for x
    x = 21,635,382,299.82/217,972.86
  6. Step 6: Final answer
    x = 99,257.23

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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.