Home / 263,202.86-394,979.46-143,290.06

Finding the Fourth Proportional to 263,202.86, 394,979.46 and 143,290.06

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Solution

The fourth proportional to 263,202.86, 394,979.46 and 143,290.06 is: 215,030.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,202.86 : 394,979.46 = 143,290.06 : x
  2. Step 2: Convert to fraction form
    263,202.86/394,979.46 = 143,290.06/x
  3. Step 3: Cross multiply
    263,202.86x = 394,979.46 × 143,290.06
  4. Step 4: Simplify right side
    263,202.86x = 56,596,628,997.38
  5. Step 5: Solve for x
    x = 56,596,628,997.38/263,202.86
  6. Step 6: Final answer
    x = 215,030.45

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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.