Home / 305,944.86-422,033.91-284,295.42

Finding the Fourth Proportional to 305,944.86, 422,033.91 and 284,295.42

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Solution

The fourth proportional to 305,944.86, 422,033.91 and 284,295.42 is: 392,169.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,944.86 : 422,033.91 = 284,295.42 : x
  2. Step 2: Convert to fraction form
    305,944.86/422,033.91 = 284,295.42/x
  3. Step 3: Cross multiply
    305,944.86x = 422,033.91 × 284,295.42
  4. Step 4: Simplify right side
    305,944.86x = 119,982,307,697.69
  5. Step 5: Solve for x
    x = 119,982,307,697.69/305,944.86
  6. Step 6: Final answer
    x = 392,169.71

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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.