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Finding the Fourth Proportional to 400,169.06, 600,209.38 and 100,649.76

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Solution

The fourth proportional to 400,169.06, 600,209.38 and 100,649.76 is: 150,963.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,169.06 : 600,209.38 = 100,649.76 : x
  2. Step 2: Convert to fraction form
    400,169.06/600,209.38 = 100,649.76/x
  3. Step 3: Cross multiply
    400,169.06x = 600,209.38 × 100,649.76
  4. Step 4: Simplify right side
    400,169.06x = 60,410,930,046.75
  5. Step 5: Solve for x
    x = 60,410,930,046.75/400,169.06
  6. Step 6: Final answer
    x = 150,963.52

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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.