Home / 279,439.26-385,626.22-152,115.80

Finding the Fourth Proportional to 279,439.26, 385,626.22 and 152,115.80

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Solution

The fourth proportional to 279,439.26, 385,626.22 and 152,115.80 is: 209,919.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,439.26 : 385,626.22 = 152,115.80 : x
  2. Step 2: Convert to fraction form
    279,439.26/385,626.22 = 152,115.80/x
  3. Step 3: Cross multiply
    279,439.26x = 385,626.22 × 152,115.80
  4. Step 4: Simplify right side
    279,439.26x = 58,659,840,956.28
  5. Step 5: Solve for x
    x = 58,659,840,956.28/279,439.26
  6. Step 6: Final answer
    x = 209,919.83

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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.