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Finding the Fourth Proportional to 217,318.60, 325,200.30 and 198,656.20

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Solution

The fourth proportional to 217,318.60, 325,200.30 and 198,656.20 is: 297,273.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,318.60 : 325,200.30 = 198,656.20 : x
  2. Step 2: Convert to fraction form
    217,318.60/325,200.30 = 198,656.20/x
  3. Step 3: Cross multiply
    217,318.60x = 325,200.30 × 198,656.20
  4. Step 4: Simplify right side
    217,318.60x = 64,603,055,836.86
  5. Step 5: Solve for x
    x = 64,603,055,836.86/217,318.60
  6. Step 6: Final answer
    x = 297,273.48

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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.