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Finding the Fourth Proportional to 199,606.50, 299,498.81 and 108,449.55

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Solution

The fourth proportional to 199,606.50, 299,498.81 and 108,449.55 is: 162,722.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,606.50 : 299,498.81 = 108,449.55 : x
  2. Step 2: Convert to fraction form
    199,606.50/299,498.81 = 108,449.55/x
  3. Step 3: Cross multiply
    199,606.50x = 299,498.81 × 108,449.55
  4. Step 4: Simplify right side
    199,606.50x = 32,480,510,627.79
  5. Step 5: Solve for x
    x = 32,480,510,627.79/199,606.50
  6. Step 6: Final answer
    x = 162,722.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.