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Finding the Fourth Proportional to 318,692.43, 477,799.74 and 192,302.73

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Solution

The fourth proportional to 318,692.43, 477,799.74 and 192,302.73 is: 288,309.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,692.43 : 477,799.74 = 192,302.73 : x
  2. Step 2: Convert to fraction form
    318,692.43/477,799.74 = 192,302.73/x
  3. Step 3: Cross multiply
    318,692.43x = 477,799.74 × 192,302.73
  4. Step 4: Simplify right side
    318,692.43x = 91,882,194,395.29
  5. Step 5: Solve for x
    x = 91,882,194,395.29/318,692.43
  6. Step 6: Final answer
    x = 288,309.94

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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.