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Finding the Fourth Proportional to 352,384.61, 486,283.85 and 199,419.96

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Solution

The fourth proportional to 352,384.61, 486,283.85 and 199,419.96 is: 275,195.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,384.61 : 486,283.85 = 199,419.96 : x
  2. Step 2: Convert to fraction form
    352,384.61/486,283.85 = 199,419.96/x
  3. Step 3: Cross multiply
    352,384.61x = 486,283.85 × 199,419.96
  4. Step 4: Simplify right side
    352,384.61x = 96,974,704,918.55
  5. Step 5: Solve for x
    x = 96,974,704,918.55/352,384.61
  6. Step 6: Final answer
    x = 275,195.63

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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.