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Finding the Fourth Proportional to 351,803.68, 485,541.20 and 222,754.15

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Solution

The fourth proportional to 351,803.68, 485,541.20 and 222,754.15 is: 307,433.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,803.68 : 485,541.20 = 222,754.15 : x
  2. Step 2: Convert to fraction form
    351,803.68/485,541.20 = 222,754.15/x
  3. Step 3: Cross multiply
    351,803.68x = 485,541.20 × 222,754.15
  4. Step 4: Simplify right side
    351,803.68x = 108,156,317,295.98
  5. Step 5: Solve for x
    x = 108,156,317,295.98/351,803.68
  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.