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Finding the Fourth Proportional to 351,803.69, 485,541.20 and 222,754.16

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Solution

The fourth proportional to 351,803.69, 485,541.20 and 222,754.16 is: 307,433.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,803.69 : 485,541.20 = 222,754.16 : x
  2. Step 2: Convert to fraction form
    351,803.69/485,541.20 = 222,754.16/x
  3. Step 3: Cross multiply
    351,803.69x = 485,541.20 × 222,754.16
  4. Step 4: Simplify right side
    351,803.69x = 108,156,318,609.92
  5. Step 5: Solve for x
    x = 108,156,318,609.92/351,803.69
  6. Step 6: Final answer
    x = 307,433.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.