Home / 431,727.84-647,666.64-132,201.36

Finding the Fourth Proportional to 431,727.84, 647,666.64 and 132,201.36

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Solution

The fourth proportional to 431,727.84, 647,666.64 and 132,201.36 is: 198,324.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,727.84 : 647,666.64 = 132,201.36 : x
  2. Step 2: Convert to fraction form
    431,727.84/647,666.64 = 132,201.36/x
  3. Step 3: Cross multiply
    431,727.84x = 647,666.64 × 132,201.36
  4. Step 4: Simplify right side
    431,727.84x = 85,622,410,634.63
  5. Step 5: Solve for x
    x = 85,622,410,634.63/431,727.84
  6. Step 6: Final answer
    x = 198,324.97

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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.