Home / 217,619.85-326,324.71-91,226.15

Finding the Fourth Proportional to 217,619.85, 326,324.71 and 91,226.15

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Solution

The fourth proportional to 217,619.85, 326,324.71 and 91,226.15 is: 136,795.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,619.85 : 326,324.71 = 91,226.15 : x
  2. Step 2: Convert to fraction form
    217,619.85/326,324.71 = 91,226.15/x
  3. Step 3: Cross multiply
    217,619.85x = 326,324.71 × 91,226.15
  4. Step 4: Simplify right side
    217,619.85x = 29,769,344,855.41
  5. Step 5: Solve for x
    x = 29,769,344,855.41/217,619.85
  6. Step 6: Final answer
    x = 136,795.17

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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.