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Finding the Fourth Proportional to 263,160.38, 394,765.58 and 73,620.79

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Solution

The fourth proportional to 263,160.38, 394,765.58 and 73,620.79 is: 110,438.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,160.38 : 394,765.58 = 73,620.79 : x
  2. Step 2: Convert to fraction form
    263,160.38/394,765.58 = 73,620.79/x
  3. Step 3: Cross multiply
    263,160.38x = 394,765.58 × 73,620.79
  4. Step 4: Simplify right side
    263,160.38x = 29,062,953,061.55
  5. Step 5: Solve for x
    x = 29,062,953,061.55/263,160.38
  6. Step 6: Final answer
    x = 110,438.18

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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.