Home / 217,523.62-300,178.07-120,721.85

Finding the Fourth Proportional to 217,523.62, 300,178.07 and 120,721.85

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Solution

The fourth proportional to 217,523.62, 300,178.07 and 120,721.85 is: 166,593.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,523.62 : 300,178.07 = 120,721.85 : x
  2. Step 2: Convert to fraction form
    217,523.62/300,178.07 = 120,721.85/x
  3. Step 3: Cross multiply
    217,523.62x = 300,178.07 × 120,721.85
  4. Step 4: Simplify right side
    217,523.62x = 36,238,053,499.85
  5. Step 5: Solve for x
    x = 36,238,053,499.85/217,523.62
  6. Step 6: Final answer
    x = 166,593.65

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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.