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Finding the Fourth Proportional to 399,973.68, 599,992.38 and 133,735.86

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Solution

The fourth proportional to 399,973.68, 599,992.38 and 133,735.86 is: 200,614.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,973.68 : 599,992.38 = 133,735.86 : x
  2. Step 2: Convert to fraction form
    399,973.68/599,992.38 = 133,735.86/x
  3. Step 3: Cross multiply
    399,973.68x = 599,992.38 × 133,735.86
  4. Step 4: Simplify right side
    399,973.68x = 80,240,496,932.75
  5. Step 5: Solve for x
    x = 80,240,496,932.75/399,973.68
  6. Step 6: Final answer
    x = 200,614.44

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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.