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Finding the Fourth Proportional to 238,910.80, 329,696.96 and 131,480.80

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Solution

The fourth proportional to 238,910.80, 329,696.96 and 131,480.80 is: 181,443.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,910.80 : 329,696.96 = 131,480.80 : x
  2. Step 2: Convert to fraction form
    238,910.80/329,696.96 = 131,480.80/x
  3. Step 3: Cross multiply
    238,910.80x = 329,696.96 × 131,480.80
  4. Step 4: Simplify right side
    238,910.80x = 43,348,820,058.37
  5. Step 5: Solve for x
    x = 43,348,820,058.37/238,910.80
  6. Step 6: Final answer
    x = 181,443.53

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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.