Home / 338,853.78-508,284.32-102,198.51

Finding the Fourth Proportional to 338,853.78, 508,284.32 and 102,198.51

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Solution

The fourth proportional to 338,853.78, 508,284.32 and 102,198.51 is: 153,298.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,853.78 : 508,284.32 = 102,198.51 : x
  2. Step 2: Convert to fraction form
    338,853.78/508,284.32 = 102,198.51/x
  3. Step 3: Cross multiply
    338,853.78x = 508,284.32 × 102,198.51
  4. Step 4: Simplify right side
    338,853.78x = 51,945,899,649.37
  5. Step 5: Solve for x
    x = 51,945,899,649.37/338,853.78
  6. Step 6: Final answer
    x = 153,298.86

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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.