Home / 217,713.27-300,441.68-122,217.51

Finding the Fourth Proportional to 217,713.27, 300,441.68 and 122,217.51

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Solution

The fourth proportional to 217,713.27, 300,441.68 and 122,217.51 is: 168,658.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,713.27 : 300,441.68 = 122,217.51 : x
  2. Step 2: Convert to fraction form
    217,713.27/300,441.68 = 122,217.51/x
  3. Step 3: Cross multiply
    217,713.27x = 300,441.68 × 122,217.51
  4. Step 4: Simplify right side
    217,713.27x = 36,719,233,418.73
  5. Step 5: Solve for x
    x = 36,719,233,418.73/217,713.27
  6. Step 6: Final answer
    x = 168,658.68

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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.