Home / 356,057.11-491,358.76-194,912.26

Finding the Fourth Proportional to 356,057.11, 491,358.76 and 194,912.26

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Solution

The fourth proportional to 356,057.11, 491,358.76 and 194,912.26 is: 268,978.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,057.11 : 491,358.76 = 194,912.26 : x
  2. Step 2: Convert to fraction form
    356,057.11/491,358.76 = 194,912.26/x
  3. Step 3: Cross multiply
    356,057.11x = 491,358.76 × 194,912.26
  4. Step 4: Simplify right side
    356,057.11x = 95,771,846,382.40
  5. Step 5: Solve for x
    x = 95,771,846,382.40/356,057.11
  6. Step 6: Final answer
    x = 268,978.89

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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.