Home / 355,920.35-491,170.09-194,775.47

Finding the Fourth Proportional to 355,920.35, 491,170.09 and 194,775.47

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Solution

The fourth proportional to 355,920.35, 491,170.09 and 194,775.47 is: 268,790.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,920.35 : 491,170.09 = 194,775.47 : x
  2. Step 2: Convert to fraction form
    355,920.35/491,170.09 = 194,775.47/x
  3. Step 3: Cross multiply
    355,920.35x = 491,170.09 × 194,775.47
  4. Step 4: Simplify right side
    355,920.35x = 95,667,882,673.84
  5. Step 5: Solve for x
    x = 95,667,882,673.84/355,920.35
  6. Step 6: Final answer
    x = 268,790.15

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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.