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Finding the Fourth Proportional to 326,600.91, 489,775.41 and 126,895.01

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Solution

The fourth proportional to 326,600.91, 489,775.41 and 126,895.01 is: 190,293.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,600.91 : 489,775.41 = 126,895.01 : x
  2. Step 2: Convert to fraction form
    326,600.91/489,775.41 = 126,895.01/x
  3. Step 3: Cross multiply
    326,600.91x = 489,775.41 × 126,895.01
  4. Step 4: Simplify right side
    326,600.91x = 62,150,053,100.83
  5. Step 5: Solve for x
    x = 62,150,053,100.83/326,600.91
  6. Step 6: Final answer
    x = 190,293.57

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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.