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Finding the Fourth Proportional to 308,052.40, 462,078.60 and 108,403.60

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Solution

The fourth proportional to 308,052.40, 462,078.60 and 108,403.60 is: 162,605.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,052.40 : 462,078.60 = 108,403.60 : x
  2. Step 2: Convert to fraction form
    308,052.40/462,078.60 = 108,403.60/x
  3. Step 3: Cross multiply
    308,052.40x = 462,078.60 × 108,403.60
  4. Step 4: Simplify right side
    308,052.40x = 50,090,983,722.96
  5. Step 5: Solve for x
    x = 50,090,983,722.96/308,052.40
  6. Step 6: Final answer
    x = 162,605.40

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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.