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Finding the Fourth Proportional to 323,935.40, 485,903.10 and 166,471.40

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Solution

The fourth proportional to 323,935.40, 485,903.10 and 166,471.40 is: 249,707.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,935.40 : 485,903.10 = 166,471.40 : x
  2. Step 2: Convert to fraction form
    323,935.40/485,903.10 = 166,471.40/x
  3. Step 3: Cross multiply
    323,935.40x = 485,903.10 × 166,471.40
  4. Step 4: Simplify right side
    323,935.40x = 80,888,969,321.34
  5. Step 5: Solve for x
    x = 80,888,969,321.34/323,935.40
  6. Step 6: Final answer
    x = 249,707.10

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.