Home / 220,538.78-330,768.50-58,433.92

Finding the Fourth Proportional to 220,538.78, 330,768.50 and 58,433.92

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Solution

The fourth proportional to 220,538.78, 330,768.50 and 58,433.92 is: 87,640.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,538.78 : 330,768.50 = 58,433.92 : x
  2. Step 2: Convert to fraction form
    220,538.78/330,768.50 = 58,433.92/x
  3. Step 3: Cross multiply
    220,538.78x = 330,768.50 × 58,433.92
  4. Step 4: Simplify right side
    220,538.78x = 19,328,100,067.52
  5. Step 5: Solve for x
    x = 19,328,100,067.52/220,538.78
  6. Step 6: Final answer
    x = 87,640.37

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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.