Home / 313,540.47-470,915.78-268,663.23

Finding the Fourth Proportional to 313,540.47, 470,915.78 and 268,663.23

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Solution

The fourth proportional to 313,540.47, 470,915.78 and 268,663.23 is: 403,513.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,540.47 : 470,915.78 = 268,663.23 : x
  2. Step 2: Convert to fraction form
    313,540.47/470,915.78 = 268,663.23/x
  3. Step 3: Cross multiply
    313,540.47x = 470,915.78 × 268,663.23
  4. Step 4: Simplify right side
    313,540.47x = 126,517,753,169.45
  5. Step 5: Solve for x
    x = 126,517,753,169.45/313,540.47
  6. Step 6: Final answer
    x = 403,513.31

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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.