Home / 253,662.24-380,551.68-76,172.61

Finding the Fourth Proportional to 253,662.24, 380,551.68 and 76,172.61

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Solution

The fourth proportional to 253,662.24, 380,551.68 and 76,172.61 is: 114,276.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,662.24 : 380,551.68 = 76,172.61 : x
  2. Step 2: Convert to fraction form
    253,662.24/380,551.68 = 76,172.61/x
  3. Step 3: Cross multiply
    253,662.24x = 380,551.68 × 76,172.61
  4. Step 4: Simplify right side
    253,662.24x = 28,987,614,705.48
  5. Step 5: Solve for x
    x = 28,987,614,705.48/253,662.24
  6. Step 6: Final answer
    x = 114,276.43

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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.