Home / 262,904.80-394,616.40-129,935.20

Finding the Fourth Proportional to 262,904.80, 394,616.40 and 129,935.20

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Solution

The fourth proportional to 262,904.80, 394,616.40 and 129,935.20 is: 195,030.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,904.80 : 394,616.40 = 129,935.20 : x
  2. Step 2: Convert to fraction form
    262,904.80/394,616.40 = 129,935.20/x
  3. Step 3: Cross multiply
    262,904.80x = 394,616.40 × 129,935.20
  4. Step 4: Simplify right side
    262,904.80x = 51,274,560,857.28
  5. Step 5: Solve for x
    x = 51,274,560,857.28/262,904.80
  6. Step 6: Final answer
    x = 195,030.90

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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.