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Finding the Fourth Proportional to 379,385.92, 568,910.40 and 201,855.52

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Solution

The fourth proportional to 379,385.92, 568,910.40 and 201,855.52 is: 302,693.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,385.92 : 568,910.40 = 201,855.52 : x
  2. Step 2: Convert to fraction form
    379,385.92/568,910.40 = 201,855.52/x
  3. Step 3: Cross multiply
    379,385.92x = 568,910.40 × 201,855.52
  4. Step 4: Simplify right side
    379,385.92x = 114,837,704,625.41
  5. Step 5: Solve for x
    x = 114,837,704,625.41/379,385.92
  6. Step 6: Final answer
    x = 302,693.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.