Home / 262,864.80-394,556.40-129,895.20

Finding the Fourth Proportional to 262,864.80, 394,556.40 and 129,895.20

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Solution

The fourth proportional to 262,864.80, 394,556.40 and 129,895.20 is: 194,970.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,864.80 : 394,556.40 = 129,895.20 : x
  2. Step 2: Convert to fraction form
    262,864.80/394,556.40 = 129,895.20/x
  3. Step 3: Cross multiply
    262,864.80x = 394,556.40 × 129,895.20
  4. Step 4: Simplify right side
    262,864.80x = 51,250,982,489.28
  5. Step 5: Solve for x
    x = 51,250,982,489.28/262,864.80
  6. Step 6: Final answer
    x = 194,970.88

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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.