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Finding the Fourth Proportional to 345,577.92, 518,600.43 and 120,940.31

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Solution

The fourth proportional to 345,577.92, 518,600.43 and 120,940.31 is: 181,492.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,577.92 : 518,600.43 = 120,940.31 : x
  2. Step 2: Convert to fraction form
    345,577.92/518,600.43 = 120,940.31/x
  3. Step 3: Cross multiply
    345,577.92x = 518,600.43 × 120,940.31
  4. Step 4: Simplify right side
    345,577.92x = 62,719,694,177.33
  5. Step 5: Solve for x
    x = 62,719,694,177.33/345,577.92
  6. Step 6: Final answer
    x = 181,492.19

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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.