Home / 290,961.03-401,511.56-163,629.03

Finding the Fourth Proportional to 290,961.03, 401,511.56 and 163,629.03

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Solution

The fourth proportional to 290,961.03, 401,511.56 and 163,629.03 is: 225,799.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,961.03 : 401,511.56 = 163,629.03 : x
  2. Step 2: Convert to fraction form
    290,961.03/401,511.56 = 163,629.03/x
  3. Step 3: Cross multiply
    290,961.03x = 401,511.56 × 163,629.03
  4. Step 4: Simplify right side
    290,961.03x = 65,698,946,278.44
  5. Step 5: Solve for x
    x = 65,698,946,278.44/290,961.03
  6. Step 6: Final answer
    x = 225,799.81

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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.