Home / 263,128.46-394,534.67-120,795.66

Finding the Fourth Proportional to 263,128.46, 394,534.67 and 120,795.66

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Solution

The fourth proportional to 263,128.46, 394,534.67 and 120,795.66 is: 181,120.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,128.46 : 394,534.67 = 120,795.66 : x
  2. Step 2: Convert to fraction form
    263,128.46/394,534.67 = 120,795.66/x
  3. Step 3: Cross multiply
    263,128.46x = 394,534.67 × 120,795.66
  4. Step 4: Simplify right side
    263,128.46x = 47,658,075,251.55
  5. Step 5: Solve for x
    x = 47,658,075,251.55/263,128.46
  6. Step 6: Final answer
    x = 181,120.95

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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.