Home / 355,947.81-491,201.40-194,799.61

Finding the Fourth Proportional to 355,947.81, 491,201.40 and 194,799.61

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Solution

The fourth proportional to 355,947.81, 491,201.40 and 194,799.61 is: 268,819.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,947.81 : 491,201.40 = 194,799.61 : x
  2. Step 2: Convert to fraction form
    355,947.81/491,201.40 = 194,799.61/x
  3. Step 3: Cross multiply
    355,947.81x = 491,201.40 × 194,799.61
  4. Step 4: Simplify right side
    355,947.81x = 95,685,841,151.45
  5. Step 5: Solve for x
    x = 95,685,841,151.45/355,947.81
  6. Step 6: Final answer
    x = 268,819.87

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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.