Home / 220,559.29-330,948.38-87,436.60

Finding the Fourth Proportional to 220,559.29, 330,948.38 and 87,436.60

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Solution

The fourth proportional to 220,559.29, 330,948.38 and 87,436.60 is: 131,198.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,559.29 : 330,948.38 = 87,436.60 : x
  2. Step 2: Convert to fraction form
    220,559.29/330,948.38 = 87,436.60/x
  3. Step 3: Cross multiply
    220,559.29x = 330,948.38 × 87,436.60
  4. Step 4: Simplify right side
    220,559.29x = 28,937,000,513.93
  5. Step 5: Solve for x
    x = 28,937,000,513.93/220,559.29
  6. Step 6: Final answer
    x = 131,198.29

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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.