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Finding the Fourth Proportional to 377,381.25, 520,786.13 and 207,611.73

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Solution

The fourth proportional to 377,381.25, 520,786.13 and 207,611.73 is: 286,504.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,381.25 : 520,786.13 = 207,611.73 : x
  2. Step 2: Convert to fraction form
    377,381.25/520,786.13 = 207,611.73/x
  3. Step 3: Cross multiply
    377,381.25x = 520,786.13 × 207,611.73
  4. Step 4: Simplify right side
    377,381.25x = 108,121,308,371.25
  5. Step 5: Solve for x
    x = 108,121,308,371.25/377,381.25
  6. Step 6: Final answer
    x = 286,504.19

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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.