Home / 320,100.06-479,892.78-219,963.54

Finding the Fourth Proportional to 320,100.06, 479,892.78 and 219,963.54

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Solution

The fourth proportional to 320,100.06, 479,892.78 and 219,963.54 is: 329,768.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,100.06 : 479,892.78 = 219,963.54 : x
  2. Step 2: Convert to fraction form
    320,100.06/479,892.78 = 219,963.54/x
  3. Step 3: Cross multiply
    320,100.06x = 479,892.78 × 219,963.54
  4. Step 4: Simplify right side
    320,100.06x = 105,558,914,709.24
  5. Step 5: Solve for x
    x = 105,558,914,709.24/320,100.06
  6. Step 6: Final answer
    x = 329,768.49

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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.