Home / 217,376.16-299,979.06-121,882.86

Finding the Fourth Proportional to 217,376.16, 299,979.06 and 121,882.86

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Solution

The fourth proportional to 217,376.16, 299,979.06 and 121,882.86 is: 168,198.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,376.16 : 299,979.06 = 121,882.86 : x
  2. Step 2: Convert to fraction form
    217,376.16/299,979.06 = 121,882.86/x
  3. Step 3: Cross multiply
    217,376.16x = 299,979.06 × 121,882.86
  4. Step 4: Simplify right side
    217,376.16x = 36,562,305,772.91
  5. Step 5: Solve for x
    x = 36,562,305,772.91/217,376.16
  6. Step 6: Final answer
    x = 168,198.32

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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.