Home / 238,738.20-329,348.27-143,078.82

Finding the Fourth Proportional to 238,738.20, 329,348.27 and 143,078.82

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Solution

The fourth proportional to 238,738.20, 329,348.27 and 143,078.82 is: 197,382.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,738.20 : 329,348.27 = 143,078.82 : x
  2. Step 2: Convert to fraction form
    238,738.20/329,348.27 = 143,078.82/x
  3. Step 3: Cross multiply
    238,738.20x = 329,348.27 × 143,078.82
  4. Step 4: Simplify right side
    238,738.20x = 47,122,761,125.25
  5. Step 5: Solve for x
    x = 47,122,761,125.25/238,738.20
  6. Step 6: Final answer
    x = 197,382.58

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1.5x scale

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.