Home / 207,946.20-311,919.30-206,196.60

Finding the Fourth Proportional to 207,946.20, 311,919.30 and 206,196.60

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Solution

The fourth proportional to 207,946.20, 311,919.30 and 206,196.60 is: 309,294.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,946.20 : 311,919.30 = 206,196.60 : x
  2. Step 2: Convert to fraction form
    207,946.20/311,919.30 = 206,196.60/x
  3. Step 3: Cross multiply
    207,946.20x = 311,919.30 × 206,196.60
  4. Step 4: Simplify right side
    207,946.20x = 64,316,699,134.38
  5. Step 5: Solve for x
    x = 64,316,699,134.38/207,946.20
  6. Step 6: Final answer
    x = 309,294.90

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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.