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Finding the Fourth Proportional to 352,645.20, 486,650.36 and 201,742.20

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Solution

The fourth proportional to 352,645.20, 486,650.36 and 201,742.20 is: 278,404.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,645.20 : 486,650.36 = 201,742.20 : x
  2. Step 2: Convert to fraction form
    352,645.20/486,650.36 = 201,742.20/x
  3. Step 3: Cross multiply
    352,645.20x = 486,650.36 × 201,742.20
  4. Step 4: Simplify right side
    352,645.20x = 98,177,914,761.55
  5. Step 5: Solve for x
    x = 98,177,914,761.55/352,645.20
  6. Step 6: Final answer
    x = 278,404.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.