Home / 263,113.60-394,476-218,557.12

Finding the Fourth Proportional to 263,113.60, 394,476 and 218,557.12

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Solution

The fourth proportional to 263,113.60, 394,476 and 218,557.12 is: 327,674.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,113.60 : 394,476 = 218,557.12 : x
  2. Step 2: Convert to fraction form
    263,113.60/394,476 = 218,557.12/x
  3. Step 3: Cross multiply
    263,113.60x = 394,476 × 218,557.12
  4. Step 4: Simplify right side
    263,113.60x = 86,215,538,469.12
  5. Step 5: Solve for x
    x = 86,215,538,469.12/263,113.60
  6. Step 6: Final answer
    x = 327,674.20

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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.