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Finding the Fourth Proportional to 290,611.88, 401,049.16 and 159,795.08

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Solution

The fourth proportional to 290,611.88, 401,049.16 and 159,795.08 is: 220,519.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,611.88 : 401,049.16 = 159,795.08 : x
  2. Step 2: Convert to fraction form
    290,611.88/401,049.16 = 159,795.08/x
  3. Step 3: Cross multiply
    290,611.88x = 401,049.16 × 159,795.08
  4. Step 4: Simplify right side
    290,611.88x = 64,085,682,606.13
  5. Step 5: Solve for x
    x = 64,085,682,606.13/290,611.88
  6. Step 6: Final answer
    x = 220,519.83

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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.