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Finding the Fourth Proportional to 356,331.24, 491,745.03 and 203,366.38

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Solution

The fourth proportional to 356,331.24, 491,745.03 and 203,366.38 is: 280,650.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,331.24 : 491,745.03 = 203,366.38 : x
  2. Step 2: Convert to fraction form
    356,331.24/491,745.03 = 203,366.38/x
  3. Step 3: Cross multiply
    356,331.24x = 491,745.03 × 203,366.38
  4. Step 4: Simplify right side
    356,331.24x = 100,004,406,634.09
  5. Step 5: Solve for x
    x = 100,004,406,634.09/356,331.24
  6. Step 6: Final answer
    x = 280,650.12

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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.