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Finding the Fourth Proportional to 399,615.07, 599,422.65 and 162,976.27

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Solution

The fourth proportional to 399,615.07, 599,422.65 and 162,976.27 is: 244,464.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,615.07 : 599,422.65 = 162,976.27 : x
  2. Step 2: Convert to fraction form
    399,615.07/599,422.65 = 162,976.27/x
  3. Step 3: Cross multiply
    399,615.07x = 599,422.65 × 162,976.27
  4. Step 4: Simplify right side
    399,615.07x = 97,691,665,540.80
  5. Step 5: Solve for x
    x = 97,691,665,540.80/399,615.07
  6. Step 6: Final answer
    x = 244,464.42

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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.