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Finding the Fourth Proportional to 326,606.30, 489,940.25 and 126,941.97

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Solution

The fourth proportional to 326,606.30, 489,940.25 and 126,941.97 is: 190,424.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,606.30 : 489,940.25 = 126,941.97 : x
  2. Step 2: Convert to fraction form
    326,606.30/489,940.25 = 126,941.97/x
  3. Step 3: Cross multiply
    326,606.30x = 489,940.25 × 126,941.97
  4. Step 4: Simplify right side
    326,606.30x = 62,193,979,882.58
  5. Step 5: Solve for x
    x = 62,193,979,882.58/326,606.30
  6. Step 6: Final answer
    x = 190,424.93

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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.