Home / 290,110.26-400,380.93-194,815.38

Finding the Fourth Proportional to 290,110.26, 400,380.93 and 194,815.38

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Solution

The fourth proportional to 290,110.26, 400,380.93 and 194,815.38 is: 268,864.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,110.26 : 400,380.93 = 194,815.38 : x
  2. Step 2: Convert to fraction form
    290,110.26/400,380.93 = 194,815.38/x
  3. Step 3: Cross multiply
    290,110.26x = 400,380.93 × 194,815.38
  4. Step 4: Simplify right side
    290,110.26x = 78,000,363,022.70
  5. Step 5: Solve for x
    x = 78,000,363,022.70/290,110.26
  6. Step 6: Final answer
    x = 268,864.54

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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.