Home / 290,189.62-400,500.85-162,872.26

Finding the Fourth Proportional to 290,189.62, 400,500.85 and 162,872.26

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Solution

The fourth proportional to 290,189.62, 400,500.85 and 162,872.26 is: 224,785.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,189.62 : 400,500.85 = 162,872.26 : x
  2. Step 2: Convert to fraction form
    290,189.62/400,500.85 = 162,872.26/x
  3. Step 3: Cross multiply
    290,189.62x = 400,500.85 × 162,872.26
  4. Step 4: Simplify right side
    290,189.62x = 65,230,478,571.42
  5. Step 5: Solve for x
    x = 65,230,478,571.42/290,189.62
  6. Step 6: Final answer
    x = 224,785.71

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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.