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Finding the Fourth Proportional to 377,350.97, 520,744.32 and 216,299.43

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Solution

The fourth proportional to 377,350.97, 520,744.32 and 216,299.43 is: 298,493.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,350.97 : 520,744.32 = 216,299.43 : x
  2. Step 2: Convert to fraction form
    377,350.97/520,744.32 = 216,299.43/x
  3. Step 3: Cross multiply
    377,350.97x = 520,744.32 × 216,299.43
  4. Step 4: Simplify right side
    377,350.97x = 112,636,699,591.74
  5. Step 5: Solve for x
    x = 112,636,699,591.74/377,350.97
  6. Step 6: Final answer
    x = 298,493.21

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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.