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Finding the Fourth Proportional to 188,031.36, 282,073.44 and 54,921.36

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Solution

The fourth proportional to 188,031.36, 282,073.44 and 54,921.36 is: 82,389.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,031.36 : 282,073.44 = 54,921.36 : x
  2. Step 2: Convert to fraction form
    188,031.36/282,073.44 = 54,921.36/x
  3. Step 3: Cross multiply
    188,031.36x = 282,073.44 × 54,921.36
  4. Step 4: Simplify right side
    188,031.36x = 15,491,856,944.68
  5. Step 5: Solve for x
    x = 15,491,856,944.68/188,031.36
  6. Step 6: Final answer
    x = 82,389.75

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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.