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Finding the Fourth Proportional to 303,109.18, 418,217.52 and 195,656.20

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Solution

The fourth proportional to 303,109.18, 418,217.52 and 195,656.20 is: 269,958.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,109.18 : 418,217.52 = 195,656.20 : x
  2. Step 2: Convert to fraction form
    303,109.18/418,217.52 = 195,656.20/x
  3. Step 3: Cross multiply
    303,109.18x = 418,217.52 × 195,656.20
  4. Step 4: Simplify right side
    303,109.18x = 81,826,850,736.62
  5. Step 5: Solve for x
    x = 81,826,850,736.62/303,109.18
  6. Step 6: Final answer
    x = 269,958.34

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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.