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Finding the Fourth Proportional to 423,606.87, 635,410.29 and 199,122.26

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Solution

The fourth proportional to 423,606.87, 635,410.29 and 199,122.26 is: 298,683.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,606.87 : 635,410.29 = 199,122.26 : x
  2. Step 2: Convert to fraction form
    423,606.87/635,410.29 = 199,122.26/x
  3. Step 3: Cross multiply
    423,606.87x = 635,410.29 × 199,122.26
  4. Step 4: Simplify right side
    423,606.87x = 126,524,329,795.00
  5. Step 5: Solve for x
    x = 126,524,329,795.00/423,606.87
  6. Step 6: Final answer
    x = 298,683.38

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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.