Home / 217,287.20-299,856.66-121,794.68

Finding the Fourth Proportional to 217,287.20, 299,856.66 and 121,794.68

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Solution

The fourth proportional to 217,287.20, 299,856.66 and 121,794.68 is: 168,076.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,287.20 : 299,856.66 = 121,794.68 : x
  2. Step 2: Convert to fraction form
    217,287.20/299,856.66 = 121,794.68/x
  3. Step 3: Cross multiply
    217,287.20x = 299,856.66 × 121,794.68
  4. Step 4: Simplify right side
    217,287.20x = 36,520,945,950.57
  5. Step 5: Solve for x
    x = 36,520,945,950.57/217,287.20
  6. Step 6: Final answer
    x = 168,076.84

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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.