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Finding the Fourth Proportional to 217,791.87, 300,545.01 and 122,302.59

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Solution

The fourth proportional to 217,791.87, 300,545.01 and 122,302.59 is: 168,773.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,791.87 : 300,545.01 = 122,302.59 : x
  2. Step 2: Convert to fraction form
    217,791.87/300,545.01 = 122,302.59/x
  3. Step 3: Cross multiply
    217,791.87x = 300,545.01 × 122,302.59
  4. Step 4: Simplify right side
    217,791.87x = 36,757,433,134.58
  5. Step 5: Solve for x
    x = 36,757,433,134.58/217,791.87
  6. Step 6: Final answer
    x = 168,773.21

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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.