Home / 263,106.40-394,400.40-130,007.20

Finding the Fourth Proportional to 263,106.40, 394,400.40 and 130,007.20

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Solution

The fourth proportional to 263,106.40, 394,400.40 and 130,007.20 is: 194,882.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,106.40 : 394,400.40 = 130,007.20 : x
  2. Step 2: Convert to fraction form
    263,106.40/394,400.40 = 130,007.20/x
  3. Step 3: Cross multiply
    263,106.40x = 394,400.40 × 130,007.20
  4. Step 4: Simplify right side
    263,106.40x = 51,274,891,682.88
  5. Step 5: Solve for x
    x = 51,274,891,682.88/263,106.40
  6. Step 6: Final answer
    x = 194,882.72

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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.