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Finding the Fourth Proportional to 377,144, 520,310.27 and 215,912.14

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Solution

The fourth proportional to 377,144, 520,310.27 and 215,912.14 is: 297,873.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,144 : 520,310.27 = 215,912.14 : x
  2. Step 2: Convert to fraction form
    377,144/520,310.27 = 215,912.14/x
  3. Step 3: Cross multiply
    377,144x = 520,310.27 × 215,912.14
  4. Step 4: Simplify right side
    377,144x = 112,341,303,859.68
  5. Step 5: Solve for x
    x = 112,341,303,859.68/377,144
  6. Step 6: Final answer
    x = 297,873.77

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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.