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Finding the Fourth Proportional to 665,861.96, 998,892.38 and 245,105.84

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Solution

The fourth proportional to 665,861.96, 998,892.38 and 245,105.84 is: 367,695.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,861.96 : 998,892.38 = 245,105.84 : x
  2. Step 2: Convert to fraction form
    665,861.96/998,892.38 = 245,105.84/x
  3. Step 3: Cross multiply
    665,861.96x = 998,892.38 × 245,105.84
  4. Step 4: Simplify right side
    665,861.96x = 244,834,355,869.50
  5. Step 5: Solve for x
    x = 244,834,355,869.50/665,861.96
  6. Step 6: Final answer
    x = 367,695.36

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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.