Home / 263,231.40-394,587.90-130,132.20

Finding the Fourth Proportional to 263,231.40, 394,587.90 and 130,132.20

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Solution

The fourth proportional to 263,231.40, 394,587.90 and 130,132.20 is: 195,070.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,231.40 : 394,587.90 = 130,132.20 : x
  2. Step 2: Convert to fraction form
    263,231.40/394,587.90 = 130,132.20/x
  3. Step 3: Cross multiply
    263,231.40x = 394,587.90 × 130,132.20
  4. Step 4: Simplify right side
    263,231.40x = 51,348,591,520.38
  5. Step 5: Solve for x
    x = 51,348,591,520.38/263,231.40
  6. Step 6: Final answer
    x = 195,070.16

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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.