Home / 203,436.78-305,167.86-53,677.22

Finding the Fourth Proportional to 203,436.78, 305,167.86 and 53,677.22

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Solution

The fourth proportional to 203,436.78, 305,167.86 and 53,677.22 is: 80,519.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,436.78 : 305,167.86 = 53,677.22 : x
  2. Step 2: Convert to fraction form
    203,436.78/305,167.86 = 53,677.22/x
  3. Step 3: Cross multiply
    203,436.78x = 305,167.86 × 53,677.22
  4. Step 4: Simplify right side
    203,436.78x = 16,380,560,698.12
  5. Step 5: Solve for x
    x = 16,380,560,698.12/203,436.78
  6. Step 6: Final answer
    x = 80,519.17

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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.