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Finding the Fourth Proportional to 315,608.05, 435,541.90 and 179,650.75

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Solution

The fourth proportional to 315,608.05, 435,541.90 and 179,650.75 is: 247,919.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,608.05 : 435,541.90 = 179,650.75 : x
  2. Step 2: Convert to fraction form
    315,608.05/435,541.90 = 179,650.75/x
  3. Step 3: Cross multiply
    315,608.05x = 435,541.90 × 179,650.75
  4. Step 4: Simplify right side
    315,608.05x = 78,245,428,991.43
  5. Step 5: Solve for x
    x = 78,245,428,991.43/315,608.05
  6. Step 6: Final answer
    x = 247,919.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.