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Finding the Fourth Proportional to 352,847.40, 486,894.30 and 199,855.14

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Solution

The fourth proportional to 352,847.40, 486,894.30 and 199,855.14 is: 275,780.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,847.40 : 486,894.30 = 199,855.14 : x
  2. Step 2: Convert to fraction form
    352,847.40/486,894.30 = 199,855.14/x
  3. Step 3: Cross multiply
    352,847.40x = 486,894.30 × 199,855.14
  4. Step 4: Simplify right side
    352,847.40x = 97,308,328,491.70
  5. Step 5: Solve for x
    x = 97,308,328,491.70/352,847.40
  6. Step 6: Final answer
    x = 275,780.21

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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.