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Finding the Fourth Proportional to 399,473.28, 599,299.20 and 150,157.44

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Solution

The fourth proportional to 399,473.28, 599,299.20 and 150,157.44 is: 225,269.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,473.28 : 599,299.20 = 150,157.44 : x
  2. Step 2: Convert to fraction form
    399,473.28/599,299.20 = 150,157.44/x
  3. Step 3: Cross multiply
    399,473.28x = 599,299.20 × 150,157.44
  4. Step 4: Simplify right side
    399,473.28x = 89,989,233,666.05
  5. Step 5: Solve for x
    x = 89,989,233,666.05/399,473.28
  6. Step 6: Final answer
    x = 225,269.72

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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.