Home / 379,612.20-523,839.92-218,441.25

Finding the Fourth Proportional to 379,612.20, 523,839.92 and 218,441.25

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Solution

The fourth proportional to 379,612.20, 523,839.92 and 218,441.25 is: 301,434.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,612.20 : 523,839.92 = 218,441.25 : x
  2. Step 2: Convert to fraction form
    379,612.20/523,839.92 = 218,441.25/x
  3. Step 3: Cross multiply
    379,612.20x = 523,839.92 × 218,441.25
  4. Step 4: Simplify right side
    379,612.20x = 114,428,245,832.49
  5. Step 5: Solve for x
    x = 114,428,245,832.49/379,612.20
  6. Step 6: Final answer
    x = 301,434.58

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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.