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Finding the Fourth Proportional to 615,185.08, 922,213.86 and 215,608.04

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Solution

The fourth proportional to 615,185.08, 922,213.86 and 215,608.04 is: 323,214.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,185.08 : 922,213.86 = 215,608.04 : x
  2. Step 2: Convert to fraction form
    615,185.08/922,213.86 = 215,608.04/x
  3. Step 3: Cross multiply
    615,185.08x = 922,213.86 × 215,608.04
  4. Step 4: Simplify right side
    615,185.08x = 198,836,722,815.43
  5. Step 5: Solve for x
    x = 198,836,722,815.43/615,185.08
  6. Step 6: Final answer
    x = 323,214.48

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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.