Home / 263,106.90-394,401.15-130,007.70

Finding the Fourth Proportional to 263,106.90, 394,401.15 and 130,007.70

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Solution

The fourth proportional to 263,106.90, 394,401.15 and 130,007.70 is: 194,883.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,106.90 : 394,401.15 = 130,007.70 : x
  2. Step 2: Convert to fraction form
    263,106.90/394,401.15 = 130,007.70/x
  3. Step 3: Cross multiply
    263,106.90x = 394,401.15 × 130,007.70
  4. Step 4: Simplify right side
    263,106.90x = 51,275,186,388.86
  5. Step 5: Solve for x
    x = 51,275,186,388.86/263,106.90
  6. Step 6: Final answer
    x = 194,883.47

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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.