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Finding the Fourth Proportional to 323,761.24, 485,525.22 and 136,787.32

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Solution

The fourth proportional to 323,761.24, 485,525.22 and 136,787.32 is: 205,131.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,761.24 : 485,525.22 = 136,787.32 : x
  2. Step 2: Convert to fraction form
    323,761.24/485,525.22 = 136,787.32/x
  3. Step 3: Cross multiply
    323,761.24x = 485,525.22 × 136,787.32
  4. Step 4: Simplify right side
    323,761.24x = 66,413,693,636.21
  5. Step 5: Solve for x
    x = 66,413,693,636.21/323,761.24
  6. Step 6: Final answer
    x = 205,131.70

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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.