Home / 338,721.30-508,082.82-114,239.43

Finding the Fourth Proportional to 338,721.30, 508,082.82 and 114,239.43

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Solution

The fourth proportional to 338,721.30, 508,082.82 and 114,239.43 is: 171,359.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,721.30 : 508,082.82 = 114,239.43 : x
  2. Step 2: Convert to fraction form
    338,721.30/508,082.82 = 114,239.43/x
  3. Step 3: Cross multiply
    338,721.30x = 508,082.82 × 114,239.43
  4. Step 4: Simplify right side
    338,721.30x = 58,043,091,749.59
  5. Step 5: Solve for x
    x = 58,043,091,749.59/338,721.30
  6. Step 6: Final answer
    x = 171,359.44

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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.