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Finding the Fourth Proportional to 207,593.40, 311,390.10 and 204,828.60

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Solution

The fourth proportional to 207,593.40, 311,390.10 and 204,828.60 is: 307,242.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,593.40 : 311,390.10 = 204,828.60 : x
  2. Step 2: Convert to fraction form
    207,593.40/311,390.10 = 204,828.60/x
  3. Step 3: Cross multiply
    207,593.40x = 311,390.10 × 204,828.60
  4. Step 4: Simplify right side
    207,593.40x = 63,781,598,236.86
  5. Step 5: Solve for x
    x = 63,781,598,236.86/207,593.40
  6. Step 6: Final answer
    x = 307,242.90

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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.