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Finding the Fourth Proportional to 351,802.68, 485,539.82 and 222,753.15

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Solution

The fourth proportional to 351,802.68, 485,539.82 and 222,753.15 is: 307,432.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,802.68 : 485,539.82 = 222,753.15 : x
  2. Step 2: Convert to fraction form
    351,802.68/485,539.82 = 222,753.15/x
  3. Step 3: Cross multiply
    351,802.68x = 485,539.82 × 222,753.15
  4. Step 4: Simplify right side
    351,802.68x = 108,155,524,355.43
  5. Step 5: Solve for x
    x = 108,155,524,355.43/351,802.68
  6. Step 6: Final answer
    x = 307,432.35

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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.