Home / 443,500.20-665,473.14-206,861.40

Finding the Fourth Proportional to 443,500.20, 665,473.14 and 206,861.40

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Solution

The fourth proportional to 443,500.20, 665,473.14 and 206,861.40 is: 310,396.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,500.20 : 665,473.14 = 206,861.40 : x
  2. Step 2: Convert to fraction form
    443,500.20/665,473.14 = 206,861.40/x
  3. Step 3: Cross multiply
    443,500.20x = 665,473.14 × 206,861.40
  4. Step 4: Simplify right side
    443,500.20x = 137,660,705,402.80
  5. Step 5: Solve for x
    x = 137,660,705,402.80/443,500.20
  6. Step 6: Final answer
    x = 310,396.04

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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.