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Finding the Fourth Proportional to 269,157.28, 403,737.56 and 82,168.80

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Solution

The fourth proportional to 269,157.28, 403,737.56 and 82,168.80 is: 123,253.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,157.28 : 403,737.56 = 82,168.80 : x
  2. Step 2: Convert to fraction form
    269,157.28/403,737.56 = 82,168.80/x
  3. Step 3: Cross multiply
    269,157.28x = 403,737.56 × 82,168.80
  4. Step 4: Simplify right side
    269,157.28x = 33,174,630,820.13
  5. Step 5: Solve for x
    x = 33,174,630,820.13/269,157.28
  6. Step 6: Final answer
    x = 123,253.70

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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.