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Finding the Fourth Proportional to 515,168.73, 772,207.69 and 173,286.69

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Solution

The fourth proportional to 515,168.73, 772,207.69 and 173,286.69 is: 259,746.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,168.73 : 772,207.69 = 173,286.69 : x
  2. Step 2: Convert to fraction form
    515,168.73/772,207.69 = 173,286.69/x
  3. Step 3: Cross multiply
    515,168.73x = 772,207.69 × 173,286.69
  4. Step 4: Simplify right side
    515,168.73x = 133,813,314,592.65
  5. Step 5: Solve for x
    x = 133,813,314,592.65/515,168.73
  6. Step 6: Final answer
    x = 259,746.58

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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.