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Finding the Fourth Proportional to 217,794.82, 300,560.39 and 121,004.92

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Solution

The fourth proportional to 217,794.82, 300,560.39 and 121,004.92 is: 166,988.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,794.82 : 300,560.39 = 121,004.92 : x
  2. Step 2: Convert to fraction form
    217,794.82/300,560.39 = 121,004.92/x
  3. Step 3: Cross multiply
    217,794.82x = 300,560.39 × 121,004.92
  4. Step 4: Simplify right side
    217,794.82x = 36,369,285,947.12
  5. Step 5: Solve for x
    x = 36,369,285,947.12/217,794.82
  6. Step 6: Final answer
    x = 166,988.76

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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.