Home / 358,849.35-494,879.46-261,899.64

Finding the Fourth Proportional to 358,849.35, 494,879.46 and 261,899.64

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Solution

The fourth proportional to 358,849.35, 494,879.46 and 261,899.64 is: 361,178.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,849.35 : 494,879.46 = 261,899.64 : x
  2. Step 2: Convert to fraction form
    358,849.35/494,879.46 = 261,899.64/x
  3. Step 3: Cross multiply
    358,849.35x = 494,879.46 × 261,899.64
  4. Step 4: Simplify right side
    358,849.35x = 129,608,752,417.39
  5. Step 5: Solve for x
    x = 129,608,752,417.39/358,849.35
  6. Step 6: Final answer
    x = 361,178.73

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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.