Home / 238,799.44-329,506.68-138,178

Finding the Fourth Proportional to 238,799.44, 329,506.68 and 138,178

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Solution

The fourth proportional to 238,799.44, 329,506.68 and 138,178 is: 190,664.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,799.44 : 329,506.68 = 138,178 : x
  2. Step 2: Convert to fraction form
    238,799.44/329,506.68 = 138,178/x
  3. Step 3: Cross multiply
    238,799.44x = 329,506.68 × 138,178
  4. Step 4: Simplify right side
    238,799.44x = 45,530,574,029.04
  5. Step 5: Solve for x
    x = 45,530,574,029.04/238,799.44
  6. Step 6: Final answer
    x = 190,664.49

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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.