Home / 260,928.73-391,427.12-73,945.09

Finding the Fourth Proportional to 260,928.73, 391,427.12 and 73,945.09

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Solution

The fourth proportional to 260,928.73, 391,427.12 and 73,945.09 is: 110,927.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,928.73 : 391,427.12 = 73,945.09 : x
  2. Step 2: Convert to fraction form
    260,928.73/391,427.12 = 73,945.09/x
  3. Step 3: Cross multiply
    260,928.73x = 391,427.12 × 73,945.09
  4. Step 4: Simplify right side
    260,928.73x = 28,944,113,616.84
  5. Step 5: Solve for x
    x = 28,944,113,616.84/260,928.73
  6. Step 6: Final answer
    x = 110,927.28

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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.