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Finding the Fourth Proportional to 326,086.56, 489,079.44 and 133,980.48

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Solution

The fourth proportional to 326,086.56, 489,079.44 and 133,980.48 is: 200,950.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,086.56 : 489,079.44 = 133,980.48 : x
  2. Step 2: Convert to fraction form
    326,086.56/489,079.44 = 133,980.48/x
  3. Step 3: Cross multiply
    326,086.56x = 489,079.44 × 133,980.48
  4. Step 4: Simplify right side
    326,086.56x = 65,527,098,129.33
  5. Step 5: Solve for x
    x = 65,527,098,129.33/326,086.56
  6. Step 6: Final answer
    x = 200,950.01

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1.5x scale

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.