Home / 421,919.69-582,249.87-230,945.18

Finding the Fourth Proportional to 421,919.69, 582,249.87 and 230,945.18

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Solution

The fourth proportional to 421,919.69, 582,249.87 and 230,945.18 is: 318,704.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,919.69 : 582,249.87 = 230,945.18 : x
  2. Step 2: Convert to fraction form
    421,919.69/582,249.87 = 230,945.18/x
  3. Step 3: Cross multiply
    421,919.69x = 582,249.87 × 230,945.18
  4. Step 4: Simplify right side
    421,919.69x = 134,467,798,120.88
  5. Step 5: Solve for x
    x = 134,467,798,120.88/421,919.69
  6. Step 6: Final answer
    x = 318,704.73

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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.