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Finding the Fourth Proportional to 260,793.60, 391,190.40 and 201,744.60

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Solution

The fourth proportional to 260,793.60, 391,190.40 and 201,744.60 is: 302,616.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,793.60 : 391,190.40 = 201,744.60 : x
  2. Step 2: Convert to fraction form
    260,793.60/391,190.40 = 201,744.60/x
  3. Step 3: Cross multiply
    260,793.60x = 391,190.40 × 201,744.60
  4. Step 4: Simplify right side
    260,793.60x = 78,920,550,771.84
  5. Step 5: Solve for x
    x = 78,920,550,771.84/260,793.60
  6. Step 6: Final answer
    x = 302,616.90

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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.