Home / 263,302.15-394,994.22-85,767.88

Finding the Fourth Proportional to 263,302.15, 394,994.22 and 85,767.88

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Solution

The fourth proportional to 263,302.15, 394,994.22 and 85,767.88 is: 128,665.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,302.15 : 394,994.22 = 85,767.88 : x
  2. Step 2: Convert to fraction form
    263,302.15/394,994.22 = 85,767.88/x
  3. Step 3: Cross multiply
    263,302.15x = 394,994.22 × 85,767.88
  4. Step 4: Simplify right side
    263,302.15x = 33,877,816,861.65
  5. Step 5: Solve for x
    x = 33,877,816,861.65/263,302.15
  6. Step 6: Final answer
    x = 128,665.17

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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.