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Finding the Fourth Proportional to 352,517.06, 486,422.20 and 201,584.90

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Solution

The fourth proportional to 352,517.06, 486,422.20 and 201,584.90 is: 278,157.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,517.06 : 486,422.20 = 201,584.90 : x
  2. Step 2: Convert to fraction form
    352,517.06/486,422.20 = 201,584.90/x
  3. Step 3: Cross multiply
    352,517.06x = 486,422.20 × 201,584.90
  4. Step 4: Simplify right side
    352,517.06x = 98,055,370,544.78
  5. Step 5: Solve for x
    x = 98,055,370,544.78/352,517.06
  6. Step 6: Final answer
    x = 278,157.80

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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.