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Finding the Fourth Proportional to 290,633.54, 401,122.46 and 169,774.45

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Solution

The fourth proportional to 290,633.54, 401,122.46 and 169,774.45 is: 234,316.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,633.54 : 401,122.46 = 169,774.45 : x
  2. Step 2: Convert to fraction form
    290,633.54/401,122.46 = 169,774.45/x
  3. Step 3: Cross multiply
    290,633.54x = 401,122.46 × 169,774.45
  4. Step 4: Simplify right side
    290,633.54x = 68,100,344,450.78
  5. Step 5: Solve for x
    x = 68,100,344,450.78/290,633.54
  6. Step 6: Final answer
    x = 234,316.88

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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.