Home / 265,984.20-398,976.30-108,325.80

Finding the Fourth Proportional to 265,984.20, 398,976.30 and 108,325.80

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Solution

The fourth proportional to 265,984.20, 398,976.30 and 108,325.80 is: 162,488.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,984.20 : 398,976.30 = 108,325.80 : x
  2. Step 2: Convert to fraction form
    265,984.20/398,976.30 = 108,325.80/x
  3. Step 3: Cross multiply
    265,984.20x = 398,976.30 × 108,325.80
  4. Step 4: Simplify right side
    265,984.20x = 43,219,426,878.54
  5. Step 5: Solve for x
    x = 43,219,426,878.54/265,984.20
  6. Step 6: Final answer
    x = 162,488.70

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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.