Home / 263,837.80-396,015.90-130,868.20

Finding the Fourth Proportional to 263,837.80, 396,015.90 and 130,868.20

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Solution

The fourth proportional to 263,837.80, 396,015.90 and 130,868.20 is: 196,430.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,837.80 : 396,015.90 = 130,868.20 : x
  2. Step 2: Convert to fraction form
    263,837.80/396,015.90 = 130,868.20/x
  3. Step 3: Cross multiply
    263,837.80x = 396,015.90 × 130,868.20
  4. Step 4: Simplify right side
    263,837.80x = 51,825,888,004.38
  5. Step 5: Solve for x
    x = 51,825,888,004.38/263,837.80
  6. Step 6: Final answer
    x = 196,430.87

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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.