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Finding the Fourth Proportional to 238,919.52, 329,571.81 and 149,340

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Solution

The fourth proportional to 238,919.52, 329,571.81 and 149,340 is: 206,003.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,919.52 : 329,571.81 = 149,340 : x
  2. Step 2: Convert to fraction form
    238,919.52/329,571.81 = 149,340/x
  3. Step 3: Cross multiply
    238,919.52x = 329,571.81 × 149,340
  4. Step 4: Simplify right side
    238,919.52x = 49,218,254,105.40
  5. Step 5: Solve for x
    x = 49,218,254,105.40/238,919.52
  6. Step 6: Final answer
    x = 206,003.49

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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.