Home / 290,796.04-401,319.66-177,640.12

Finding the Fourth Proportional to 290,796.04, 401,319.66 and 177,640.12

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Solution

The fourth proportional to 290,796.04, 401,319.66 and 177,640.12 is: 245,156.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,796.04 : 401,319.66 = 177,640.12 : x
  2. Step 2: Convert to fraction form
    290,796.04/401,319.66 = 177,640.12/x
  3. Step 3: Cross multiply
    290,796.04x = 401,319.66 × 177,640.12
  4. Step 4: Simplify right side
    290,796.04x = 71,290,472,560.76
  5. Step 5: Solve for x
    x = 71,290,472,560.76/290,796.04
  6. Step 6: Final answer
    x = 245,156.27

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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.