Home / 220,399.18-330,620.64-87,371.26

Finding the Fourth Proportional to 220,399.18, 330,620.64 and 87,371.26

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Solution

The fourth proportional to 220,399.18, 330,620.64 and 87,371.26 is: 131,065.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,399.18 : 330,620.64 = 87,371.26 : x
  2. Step 2: Convert to fraction form
    220,399.18/330,620.64 = 87,371.26/x
  3. Step 3: Cross multiply
    220,399.18x = 330,620.64 × 87,371.26
  4. Step 4: Simplify right side
    220,399.18x = 28,886,740,744.61
  5. Step 5: Solve for x
    x = 28,886,740,744.61/220,399.18
  6. Step 6: Final answer
    x = 131,065.56

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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.