Home / 262,974.80-394,721.40-130,005.20

Finding the Fourth Proportional to 262,974.80, 394,721.40 and 130,005.20

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Solution

The fourth proportional to 262,974.80, 394,721.40 and 130,005.20 is: 195,135.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,974.80 : 394,721.40 = 130,005.20 : x
  2. Step 2: Convert to fraction form
    262,974.80/394,721.40 = 130,005.20/x
  3. Step 3: Cross multiply
    262,974.80x = 394,721.40 × 130,005.20
  4. Step 4: Simplify right side
    262,974.80x = 51,315,834,551.28
  5. Step 5: Solve for x
    x = 51,315,834,551.28/262,974.80
  6. Step 6: Final answer
    x = 195,135.94

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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.