Home / 279,845.50-419,768.25-102,255.70

Finding the Fourth Proportional to 279,845.50, 419,768.25 and 102,255.70

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Solution

The fourth proportional to 279,845.50, 419,768.25 and 102,255.70 is: 153,383.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,845.50 : 419,768.25 = 102,255.70 : x
  2. Step 2: Convert to fraction form
    279,845.50/419,768.25 = 102,255.70/x
  3. Step 3: Cross multiply
    279,845.50x = 419,768.25 × 102,255.70
  4. Step 4: Simplify right side
    279,845.50x = 42,923,696,241.53
  5. Step 5: Solve for x
    x = 42,923,696,241.53/279,845.50
  6. Step 6: Final answer
    x = 153,383.55

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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.