Home / 268,433.10-402,648.60-68,753.22

Finding the Fourth Proportional to 268,433.10, 402,648.60 and 68,753.22

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Solution

The fourth proportional to 268,433.10, 402,648.60 and 68,753.22 is: 103,129.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,433.10 : 402,648.60 = 68,753.22 : x
  2. Step 2: Convert to fraction form
    268,433.10/402,648.60 = 68,753.22/x
  3. Step 3: Cross multiply
    268,433.10x = 402,648.60 × 68,753.22
  4. Step 4: Simplify right side
    268,433.10x = 27,683,387,778.49
  5. Step 5: Solve for x
    x = 27,683,387,778.49/268,433.10
  6. Step 6: Final answer
    x = 103,129.56

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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.