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Finding the Fourth Proportional to 320,179.69, 479,226.93 and 235,906.21

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Solution

The fourth proportional to 320,179.69, 479,226.93 and 235,906.21 is: 353,091.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,179.69 : 479,226.93 = 235,906.21 : x
  2. Step 2: Convert to fraction form
    320,179.69/479,226.93 = 235,906.21/x
  3. Step 3: Cross multiply
    320,179.69x = 479,226.93 × 235,906.21
  4. Step 4: Simplify right side
    320,179.69x = 113,052,608,786.24
  5. Step 5: Solve for x
    x = 113,052,608,786.24/320,179.69
  6. Step 6: Final answer
    x = 353,091.13

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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.