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Finding the Fourth Proportional to 500,167.94, 690,231.78 and 273,813.44

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Solution

The fourth proportional to 500,167.94, 690,231.78 and 273,813.44 is: 377,862.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,167.94 : 690,231.78 = 273,813.44 : x
  2. Step 2: Convert to fraction form
    500,167.94/690,231.78 = 273,813.44/x
  3. Step 3: Cross multiply
    500,167.94x = 690,231.78 × 273,813.44
  4. Step 4: Simplify right side
    500,167.94x = 188,994,738,079.12
  5. Step 5: Solve for x
    x = 188,994,738,079.12/500,167.94
  6. Step 6: Final answer
    x = 377,862.56

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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.