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Finding the Fourth Proportional to 253,149.94, 379,782.51 and 134,758.90

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Solution

The fourth proportional to 253,149.94, 379,782.51 and 134,758.90 is: 202,169.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,149.94 : 379,782.51 = 134,758.90 : x
  2. Step 2: Convert to fraction form
    253,149.94/379,782.51 = 134,758.90/x
  3. Step 3: Cross multiply
    253,149.94x = 379,782.51 × 134,758.90
  4. Step 4: Simplify right side
    253,149.94x = 51,179,073,286.84
  5. Step 5: Solve for x
    x = 51,179,073,286.84/253,149.94
  6. Step 6: Final answer
    x = 202,169.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.