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Finding the Fourth Proportional to 290,665.29, 401,227.70 and 169,845.84

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Solution

The fourth proportional to 290,665.29, 401,227.70 and 169,845.84 is: 234,451.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,665.29 : 401,227.70 = 169,845.84 : x
  2. Step 2: Convert to fraction form
    290,665.29/401,227.70 = 169,845.84/x
  3. Step 3: Cross multiply
    290,665.29x = 401,227.70 × 169,845.84
  4. Step 4: Simplify right side
    290,665.29x = 68,146,855,193.16
  5. Step 5: Solve for x
    x = 68,146,855,193.16/290,665.29
  6. Step 6: Final answer
    x = 234,451.30

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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.