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Finding the Fourth Proportional to 251,178.30, 376,692.30 and 82,667.52

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Solution

The fourth proportional to 251,178.30, 376,692.30 and 82,667.52 is: 123,976.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,178.30 : 376,692.30 = 82,667.52 : x
  2. Step 2: Convert to fraction form
    251,178.30/376,692.30 = 82,667.52/x
  3. Step 3: Cross multiply
    251,178.30x = 376,692.30 × 82,667.52
  4. Step 4: Simplify right side
    251,178.30x = 31,140,218,244.10
  5. Step 5: Solve for x
    x = 31,140,218,244.10/251,178.30
  6. Step 6: Final answer
    x = 123,976.55

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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.