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Finding the Fourth Proportional to 238,774, 329,486.52 and 131,348.56

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Solution

The fourth proportional to 238,774, 329,486.52 and 131,348.56 is: 181,249.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,774 : 329,486.52 = 131,348.56 : x
  2. Step 2: Convert to fraction form
    238,774/329,486.52 = 131,348.56/x
  3. Step 3: Cross multiply
    238,774x = 329,486.52 × 131,348.56
  4. Step 4: Simplify right side
    238,774x = 43,277,579,941.41
  5. Step 5: Solve for x
    x = 43,277,579,941.41/238,774
  6. Step 6: Final answer
    x = 181,249.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.