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Finding the Fourth Proportional to 326,496.08, 489,651.14 and 126,773.78

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Solution

The fourth proportional to 326,496.08, 489,651.14 and 126,773.78 is: 190,124.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,496.08 : 489,651.14 = 126,773.78 : x
  2. Step 2: Convert to fraction form
    326,496.08/489,651.14 = 126,773.78/x
  3. Step 3: Cross multiply
    326,496.08x = 489,651.14 × 126,773.78
  4. Step 4: Simplify right side
    326,496.08x = 62,074,923,767.79
  5. Step 5: Solve for x
    x = 62,074,923,767.79/326,496.08
  6. Step 6: Final answer
    x = 190,124.56

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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.