Home / 217,883.28-300,736.08-122,420.73

Finding the Fourth Proportional to 217,883.28, 300,736.08 and 122,420.73

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Solution

The fourth proportional to 217,883.28, 300,736.08 and 122,420.73 is: 168,972.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,883.28 : 300,736.08 = 122,420.73 : x
  2. Step 2: Convert to fraction form
    217,883.28/300,736.08 = 122,420.73/x
  3. Step 3: Cross multiply
    217,883.28x = 300,736.08 × 122,420.73
  4. Step 4: Simplify right side
    217,883.28x = 36,816,330,450.94
  5. Step 5: Solve for x
    x = 36,816,330,450.94/217,883.28
  6. Step 6: Final answer
    x = 168,972.72

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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.