Home / 217,927.52-300,723.78-122,450.12

Finding the Fourth Proportional to 217,927.52, 300,723.78 and 122,450.12

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Solution

The fourth proportional to 217,927.52, 300,723.78 and 122,450.12 is: 168,972.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,927.52 : 300,723.78 = 122,450.12 : x
  2. Step 2: Convert to fraction form
    217,927.52/300,723.78 = 122,450.12/x
  3. Step 3: Cross multiply
    217,927.52x = 300,723.78 × 122,450.12
  4. Step 4: Simplify right side
    217,927.52x = 36,823,662,947.85
  5. Step 5: Solve for x
    x = 36,823,662,947.85/217,927.52
  6. Step 6: Final answer
    x = 168,972.06

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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.