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Finding the Fourth Proportional to 150,286.97, 207,392 and 85,755.04

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Solution

The fourth proportional to 150,286.97, 207,392 and 85,755.04 is: 118,339.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,286.97 : 207,392 = 85,755.04 : x
  2. Step 2: Convert to fraction form
    150,286.97/207,392 = 85,755.04/x
  3. Step 3: Cross multiply
    150,286.97x = 207,392 × 85,755.04
  4. Step 4: Simplify right side
    150,286.97x = 17,784,908,218.72
  5. Step 5: Solve for x
    x = 17,784,908,218.72/150,286.97
  6. Step 6: Final answer
    x = 118,339.66

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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.