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Finding the Fourth Proportional to 397,727.35, 548,863.83 and 218,879.35

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Solution

The fourth proportional to 397,727.35, 548,863.83 and 218,879.35 is: 302,053.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,727.35 : 548,863.83 = 218,879.35 : x
  2. Step 2: Convert to fraction form
    397,727.35/548,863.83 = 218,879.35/x
  3. Step 3: Cross multiply
    397,727.35x = 548,863.83 × 218,879.35
  4. Step 4: Simplify right side
    397,727.35x = 120,134,958,348.91
  5. Step 5: Solve for x
    x = 120,134,958,348.91/397,727.35
  6. Step 6: Final answer
    x = 302,053.55

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1.5x scale

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.