Home / 220,382.07-330,379.26-87,355.70

Finding the Fourth Proportional to 220,382.07, 330,379.26 and 87,355.70

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Solution

The fourth proportional to 220,382.07, 330,379.26 and 87,355.70 is: 130,956.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,382.07 : 330,379.26 = 87,355.70 : x
  2. Step 2: Convert to fraction form
    220,382.07/330,379.26 = 87,355.70/x
  3. Step 3: Cross multiply
    220,382.07x = 330,379.26 × 87,355.70
  4. Step 4: Simplify right side
    220,382.07x = 28,860,510,782.22
  5. Step 5: Solve for x
    x = 28,860,510,782.22/220,382.07
  6. Step 6: Final answer
    x = 130,956.71

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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.