Home / 355,923.72-491,127.30-204,991.56

Finding the Fourth Proportional to 355,923.72, 491,127.30 and 204,991.56

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Solution

The fourth proportional to 355,923.72, 491,127.30 and 204,991.56 is: 282,861.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,923.72 : 491,127.30 = 204,991.56 : x
  2. Step 2: Convert to fraction form
    355,923.72/491,127.30 = 204,991.56/x
  3. Step 3: Cross multiply
    355,923.72x = 491,127.30 × 204,991.56
  4. Step 4: Simplify right side
    355,923.72x = 100,676,951,385.59
  5. Step 5: Solve for x
    x = 100,676,951,385.59/355,923.72
  6. Step 6: Final answer
    x = 282,861.03

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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.