Home / 355,905.21-491,149.25-194,760.30

Finding the Fourth Proportional to 355,905.21, 491,149.25 and 194,760.30

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Solution

The fourth proportional to 355,905.21, 491,149.25 and 194,760.30 is: 268,769.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,905.21 : 491,149.25 = 194,760.30 : x
  2. Step 2: Convert to fraction form
    355,905.21/491,149.25 = 194,760.30/x
  3. Step 3: Cross multiply
    355,905.21x = 491,149.25 × 194,760.30
  4. Step 4: Simplify right side
    355,905.21x = 95,656,374,300.97
  5. Step 5: Solve for x
    x = 95,656,374,300.97/355,905.21
  6. Step 6: Final answer
    x = 268,769.24

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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.