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Finding the Fourth Proportional to 329,451.71, 494,581.55 and 217,225.80

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Solution

The fourth proportional to 329,451.71, 494,581.55 and 217,225.80 is: 326,105.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,451.71 : 494,581.55 = 217,225.80 : x
  2. Step 2: Convert to fraction form
    329,451.71/494,581.55 = 217,225.80/x
  3. Step 3: Cross multiply
    329,451.71x = 494,581.55 × 217,225.80
  4. Step 4: Simplify right side
    329,451.71x = 107,435,871,777.86
  5. Step 5: Solve for x
    x = 107,435,871,777.86/329,451.71
  6. Step 6: Final answer
    x = 326,105.07

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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.