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Finding the Fourth Proportional to 234,680, 352,020 and 76,919.54

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Solution

The fourth proportional to 234,680, 352,020 and 76,919.54 is: 115,379.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,680 : 352,020 = 76,919.54 : x
  2. Step 2: Convert to fraction form
    234,680/352,020 = 76,919.54/x
  3. Step 3: Cross multiply
    234,680x = 352,020 × 76,919.54
  4. Step 4: Simplify right side
    234,680x = 27,077,216,470.80
  5. Step 5: Solve for x
    x = 27,077,216,470.80/234,680
  6. Step 6: Final answer
    x = 115,379.31

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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.