Home / 268,110.24-402,165-68,430.60

Finding the Fourth Proportional to 268,110.24, 402,165 and 68,430.60

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Solution

The fourth proportional to 268,110.24, 402,165 and 68,430.60 is: 102,645.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,110.24 : 402,165 = 68,430.60 : x
  2. Step 2: Convert to fraction form
    268,110.24/402,165 = 68,430.60/x
  3. Step 3: Cross multiply
    268,110.24x = 402,165 × 68,430.60
  4. Step 4: Simplify right side
    268,110.24x = 27,520,392,249.00
  5. Step 5: Solve for x
    x = 27,520,392,249.00/268,110.24
  6. Step 6: Final answer
    x = 102,645.81

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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.