Home / 262,991.02-394,498.28-80,608.38

Finding the Fourth Proportional to 262,991.02, 394,498.28 and 80,608.38

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Solution

The fourth proportional to 262,991.02, 394,498.28 and 80,608.38 is: 120,916.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,991.02 : 394,498.28 = 80,608.38 : x
  2. Step 2: Convert to fraction form
    262,991.02/394,498.28 = 80,608.38/x
  3. Step 3: Cross multiply
    262,991.02x = 394,498.28 × 80,608.38
  4. Step 4: Simplify right side
    262,991.02x = 31,799,868,204.79
  5. Step 5: Solve for x
    x = 31,799,868,204.79/262,991.02
  6. Step 6: Final answer
    x = 120,916.18

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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.