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Finding the Fourth Proportional to 303,720.87, 419,098.83 and 167,746.72

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Solution

The fourth proportional to 303,720.87, 419,098.83 and 167,746.72 is: 231,470.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,720.87 : 419,098.83 = 167,746.72 : x
  2. Step 2: Convert to fraction form
    303,720.87/419,098.83 = 167,746.72/x
  3. Step 3: Cross multiply
    303,720.87x = 419,098.83 × 167,746.72
  4. Step 4: Simplify right side
    303,720.87x = 70,302,455,791.43
  5. Step 5: Solve for x
    x = 70,302,455,791.43/303,720.87
  6. Step 6: Final answer
    x = 231,470.62

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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.