Home / 217,509.92-300,177.48-122,022.80

Finding the Fourth Proportional to 217,509.92, 300,177.48 and 122,022.80

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Solution

The fourth proportional to 217,509.92, 300,177.48 and 122,022.80 is: 168,399.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,509.92 : 300,177.48 = 122,022.80 : x
  2. Step 2: Convert to fraction form
    217,509.92/300,177.48 = 122,022.80/x
  3. Step 3: Cross multiply
    217,509.92x = 300,177.48 × 122,022.80
  4. Step 4: Simplify right side
    217,509.92x = 36,628,496,606.54
  5. Step 5: Solve for x
    x = 36,628,496,606.54/217,509.92
  6. Step 6: Final answer
    x = 168,399.20

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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.