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Finding the Fourth Proportional to 299,692.20, 449,538.30 and 159,724.20

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Solution

The fourth proportional to 299,692.20, 449,538.30 and 159,724.20 is: 239,586.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,692.20 : 449,538.30 = 159,724.20 : x
  2. Step 2: Convert to fraction form
    299,692.20/449,538.30 = 159,724.20/x
  3. Step 3: Cross multiply
    299,692.20x = 449,538.30 × 159,724.20
  4. Step 4: Simplify right side
    299,692.20x = 71,802,145,336.86
  5. Step 5: Solve for x
    x = 71,802,145,336.86/299,692.20
  6. Step 6: Final answer
    x = 239,586.30

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1.5x scale

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.