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Finding the Fourth Proportional to 217,559.82, 300,237.73 and 122,073.58

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Solution

The fourth proportional to 217,559.82, 300,237.73 and 122,073.58 is: 168,464.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,559.82 : 300,237.73 = 122,073.58 : x
  2. Step 2: Convert to fraction form
    217,559.82/300,237.73 = 122,073.58/x
  3. Step 3: Cross multiply
    217,559.82x = 300,237.73 × 122,073.58
  4. Step 4: Simplify right side
    217,559.82x = 36,651,093,496.40
  5. Step 5: Solve for x
    x = 36,651,093,496.40/217,559.82
  6. Step 6: Final answer
    x = 168,464.44

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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.