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Finding the Fourth Proportional to 330,190.80, 495,119.88 and 161,723.76

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Solution

The fourth proportional to 330,190.80, 495,119.88 and 161,723.76 is: 242,504.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,190.80 : 495,119.88 = 161,723.76 : x
  2. Step 2: Convert to fraction form
    330,190.80/495,119.88 = 161,723.76/x
  3. Step 3: Cross multiply
    330,190.80x = 495,119.88 × 161,723.76
  4. Step 4: Simplify right side
    330,190.80x = 80,072,648,644.35
  5. Step 5: Solve for x
    x = 80,072,648,644.35/330,190.80
  6. Step 6: Final answer
    x = 242,504.18

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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.