Home / 217,976.36-326,965.66-66,174.76

Finding the Fourth Proportional to 217,976.36, 326,965.66 and 66,174.76

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Solution

The fourth proportional to 217,976.36, 326,965.66 and 66,174.76 is: 99,262.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,976.36 : 326,965.66 = 66,174.76 : x
  2. Step 2: Convert to fraction form
    217,976.36/326,965.66 = 66,174.76/x
  3. Step 3: Cross multiply
    217,976.36x = 326,965.66 × 66,174.76
  4. Step 4: Simplify right side
    217,976.36x = 21,636,874,078.74
  5. Step 5: Solve for x
    x = 21,636,874,078.74/217,976.36
  6. Step 6: Final answer
    x = 99,262.48

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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.