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Finding the Fourth Proportional to 173,388.60, 260,018.10 and 68,185.80

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Solution

The fourth proportional to 173,388.60, 260,018.10 and 68,185.80 is: 102,253.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,388.60 : 260,018.10 = 68,185.80 : x
  2. Step 2: Convert to fraction form
    173,388.60/260,018.10 = 68,185.80/x
  3. Step 3: Cross multiply
    173,388.60x = 260,018.10 × 68,185.80
  4. Step 4: Simplify right side
    173,388.60x = 17,729,542,162.98
  5. Step 5: Solve for x
    x = 17,729,542,162.98/173,388.60
  6. Step 6: Final answer
    x = 102,253.22

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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.