Home / 262,979.20-394,526.40-129,923.20

Finding the Fourth Proportional to 262,979.20, 394,526.40 and 129,923.20

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Solution

The fourth proportional to 262,979.20, 394,526.40 and 129,923.20 is: 194,913.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,979.20 : 394,526.40 = 129,923.20 : x
  2. Step 2: Convert to fraction form
    262,979.20/394,526.40 = 129,923.20/x
  3. Step 3: Cross multiply
    262,979.20x = 394,526.40 × 129,923.20
  4. Step 4: Simplify right side
    262,979.20x = 51,258,132,372.48
  5. Step 5: Solve for x
    x = 51,258,132,372.48/262,979.20
  6. Step 6: Final answer
    x = 194,913.26

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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.