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Finding the Fourth Proportional to 330,219.30, 495,000.90 and 161,601.60

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Solution

The fourth proportional to 330,219.30, 495,000.90 and 161,601.60 is: 242,241.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,219.30 : 495,000.90 = 161,601.60 : x
  2. Step 2: Convert to fraction form
    330,219.30/495,000.90 = 161,601.60/x
  3. Step 3: Cross multiply
    330,219.30x = 495,000.90 × 161,601.60
  4. Step 4: Simplify right side
    330,219.30x = 79,992,937,441.44
  5. Step 5: Solve for x
    x = 79,992,937,441.44/330,219.30
  6. Step 6: Final answer
    x = 242,241.86

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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.