Home / 348,375.20-521,785.20-268,865.60

Finding the Fourth Proportional to 348,375.20, 521,785.20 and 268,865.60

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Solution

The fourth proportional to 348,375.20, 521,785.20 and 268,865.60 is: 402,698.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,375.20 : 521,785.20 = 268,865.60 : x
  2. Step 2: Convert to fraction form
    348,375.20/521,785.20 = 268,865.60/x
  3. Step 3: Cross multiply
    348,375.20x = 521,785.20 × 268,865.60
  4. Step 4: Simplify right side
    348,375.20x = 140,290,090,869.12
  5. Step 5: Solve for x
    x = 140,290,090,869.12/348,375.20
  6. Step 6: Final answer
    x = 402,698.27

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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.