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Finding the Fourth Proportional to 415,124.92, 622,464.66 and 130,762.36

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Solution

The fourth proportional to 415,124.92, 622,464.66 and 130,762.36 is: 196,073.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,124.92 : 622,464.66 = 130,762.36 : x
  2. Step 2: Convert to fraction form
    415,124.92/622,464.66 = 130,762.36/x
  3. Step 3: Cross multiply
    415,124.92x = 622,464.66 × 130,762.36
  4. Step 4: Simplify right side
    415,124.92x = 81,394,947,958.20
  5. Step 5: Solve for x
    x = 81,394,947,958.20/415,124.92
  6. Step 6: Final answer
    x = 196,073.38

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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.