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Finding the Fourth Proportional to 394,662.68, 591,719.42 and 169,955.72

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Solution

The fourth proportional to 394,662.68, 591,719.42 and 169,955.72 is: 254,815.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,662.68 : 591,719.42 = 169,955.72 : x
  2. Step 2: Convert to fraction form
    394,662.68/591,719.42 = 169,955.72/x
  3. Step 3: Cross multiply
    394,662.68x = 591,719.42 × 169,955.72
  4. Step 4: Simplify right side
    394,662.68x = 100,566,097,530.38
  5. Step 5: Solve for x
    x = 100,566,097,530.38/394,662.68
  6. Step 6: Final answer
    x = 254,815.32

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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.