Home / 305,898.93-422,022.75-225,517.57

Finding the Fourth Proportional to 305,898.93, 422,022.75 and 225,517.57

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Solution

The fourth proportional to 305,898.93, 422,022.75 and 225,517.57 is: 311,127.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,898.93 : 422,022.75 = 225,517.57 : x
  2. Step 2: Convert to fraction form
    305,898.93/422,022.75 = 225,517.57/x
  3. Step 3: Cross multiply
    305,898.93x = 422,022.75 × 225,517.57
  4. Step 4: Simplify right side
    305,898.93x = 95,173,545,064.72
  5. Step 5: Solve for x
    x = 95,173,545,064.72/305,898.93
  6. Step 6: Final answer
    x = 311,127.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.