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Finding the Fourth Proportional to 362,939, 500,855.82 and 203,963

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Solution

The fourth proportional to 362,939, 500,855.82 and 203,963 is: 281,468.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,939 : 500,855.82 = 203,963 : x
  2. Step 2: Convert to fraction form
    362,939/500,855.82 = 203,963/x
  3. Step 3: Cross multiply
    362,939x = 500,855.82 × 203,963
  4. Step 4: Simplify right side
    362,939x = 102,156,055,614.66
  5. Step 5: Solve for x
    x = 102,156,055,614.66/362,939
  6. Step 6: Final answer
    x = 281,468.94

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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.