Home / 400,976.06-553,346.94-219,694.86

Finding the Fourth Proportional to 400,976.06, 553,346.94 and 219,694.86

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Solution

The fourth proportional to 400,976.06, 553,346.94 and 219,694.86 is: 303,178.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,976.06 : 553,346.94 = 219,694.86 : x
  2. Step 2: Convert to fraction form
    400,976.06/553,346.94 = 219,694.86/x
  3. Step 3: Cross multiply
    400,976.06x = 553,346.94 × 219,694.86
  4. Step 4: Simplify right side
    400,976.06x = 121,567,478,514.73
  5. Step 5: Solve for x
    x = 121,567,478,514.73/400,976.06
  6. Step 6: Final answer
    x = 303,178.90

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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.