Home / 260,921.96-391,280.82-92,377.16

Finding the Fourth Proportional to 260,921.96, 391,280.82 and 92,377.16

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Solution

The fourth proportional to 260,921.96, 391,280.82 and 92,377.16 is: 138,529.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,921.96 : 391,280.82 = 92,377.16 : x
  2. Step 2: Convert to fraction form
    260,921.96/391,280.82 = 92,377.16/x
  3. Step 3: Cross multiply
    260,921.96x = 391,280.82 × 92,377.16
  4. Step 4: Simplify right side
    260,921.96x = 36,145,410,914.07
  5. Step 5: Solve for x
    x = 36,145,410,914.07/260,921.96
  6. Step 6: Final answer
    x = 138,529.59

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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.