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Finding the Fourth Proportional to 515,168.48, 772,207.32 and 173,286.44

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Solution

The fourth proportional to 515,168.48, 772,207.32 and 173,286.44 is: 259,746.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,168.48 : 772,207.32 = 173,286.44 : x
  2. Step 2: Convert to fraction form
    515,168.48/772,207.32 = 173,286.44/x
  3. Step 3: Cross multiply
    515,168.48x = 772,207.32 × 173,286.44
  4. Step 4: Simplify right side
    515,168.48x = 133,813,055,647.20
  5. Step 5: Solve for x
    x = 133,813,055,647.20/515,168.48
  6. Step 6: Final answer
    x = 259,746.20

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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.