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Finding the Fourth Proportional to 143,692.65, 215,539.38 and 50,198.40

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Solution

The fourth proportional to 143,692.65, 215,539.38 and 50,198.40 is: 75,297.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,692.65 : 215,539.38 = 50,198.40 : x
  2. Step 2: Convert to fraction form
    143,692.65/215,539.38 = 50,198.40/x
  3. Step 3: Cross multiply
    143,692.65x = 215,539.38 × 50,198.40
  4. Step 4: Simplify right side
    143,692.65x = 10,819,732,012.99
  5. Step 5: Solve for x
    x = 10,819,732,012.99/143,692.65
  6. Step 6: Final answer
    x = 75,297.74

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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.