Home / 262,824.40-394,294.20-85,301.20

Finding the Fourth Proportional to 262,824.40, 394,294.20 and 85,301.20

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Solution

The fourth proportional to 262,824.40, 394,294.20 and 85,301.20 is: 127,970.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,824.40 : 394,294.20 = 85,301.20 : x
  2. Step 2: Convert to fraction form
    262,824.40/394,294.20 = 85,301.20/x
  3. Step 3: Cross multiply
    262,824.40x = 394,294.20 × 85,301.20
  4. Step 4: Simplify right side
    262,824.40x = 33,633,768,413.04
  5. Step 5: Solve for x
    x = 33,633,768,413.04/262,824.40
  6. Step 6: Final answer
    x = 127,970.49

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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.