Home / 263,031.40-394,331.10-113,386.60

Finding the Fourth Proportional to 263,031.40, 394,331.10 and 113,386.60

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Solution

The fourth proportional to 263,031.40, 394,331.10 and 113,386.60 is: 169,986.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,031.40 : 394,331.10 = 113,386.60 : x
  2. Step 2: Convert to fraction form
    263,031.40/394,331.10 = 113,386.60/x
  3. Step 3: Cross multiply
    263,031.40x = 394,331.10 × 113,386.60
  4. Step 4: Simplify right side
    263,031.40x = 44,711,862,703.26
  5. Step 5: Solve for x
    x = 44,711,862,703.26/263,031.40
  6. Step 6: Final answer
    x = 169,986.79

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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.