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Finding the Fourth Proportional to 324,433.92, 485,998.29 and 161,837.76

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Solution

The fourth proportional to 324,433.92, 485,998.29 and 161,837.76 is: 242,431.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,433.92 : 485,998.29 = 161,837.76 : x
  2. Step 2: Convert to fraction form
    324,433.92/485,998.29 = 161,837.76/x
  3. Step 3: Cross multiply
    324,433.92x = 485,998.29 × 161,837.76
  4. Step 4: Simplify right side
    324,433.92x = 78,652,874,617.43
  5. Step 5: Solve for x
    x = 78,652,874,617.43/324,433.92
  6. Step 6: Final answer
    x = 242,431.11

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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.