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Finding the Fourth Proportional to 605,151.60, 907,727.40 and 161,919.60

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Solution

The fourth proportional to 605,151.60, 907,727.40 and 161,919.60 is: 242,879.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,151.60 : 907,727.40 = 161,919.60 : x
  2. Step 2: Convert to fraction form
    605,151.60/907,727.40 = 161,919.60/x
  3. Step 3: Cross multiply
    605,151.60x = 907,727.40 × 161,919.60
  4. Step 4: Simplify right side
    605,151.60x = 146,978,857,517.04
  5. Step 5: Solve for x
    x = 146,978,857,517.04/605,151.60
  6. Step 6: Final answer
    x = 242,879.40

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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.