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Finding the Fourth Proportional to 217,793.82, 300,559.01 and 121,003.92

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Solution

The fourth proportional to 217,793.82, 300,559.01 and 121,003.92 is: 166,987.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,793.82 : 300,559.01 = 121,003.92 : x
  2. Step 2: Convert to fraction form
    217,793.82/300,559.01 = 121,003.92/x
  3. Step 3: Cross multiply
    217,793.82x = 300,559.01 × 121,003.92
  4. Step 4: Simplify right side
    217,793.82x = 36,368,818,401.32
  5. Step 5: Solve for x
    x = 36,368,818,401.32/217,793.82
  6. Step 6: Final answer
    x = 166,987.38

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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.