Home / 220,515.41-330,882.57-87,392.72

Finding the Fourth Proportional to 220,515.41, 330,882.57 and 87,392.72

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Solution

The fourth proportional to 220,515.41, 330,882.57 and 87,392.72 is: 131,132.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,515.41 : 330,882.57 = 87,392.72 : x
  2. Step 2: Convert to fraction form
    220,515.41/330,882.57 = 87,392.72/x
  3. Step 3: Cross multiply
    220,515.41x = 330,882.57 × 87,392.72
  4. Step 4: Simplify right side
    220,515.41x = 28,916,728,620.10
  5. Step 5: Solve for x
    x = 28,916,728,620.10/220,515.41
  6. Step 6: Final answer
    x = 131,132.46

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1.5x scale

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.