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Finding the Fourth Proportional to 290,673.22, 401,238.66 and 169,853.79

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Solution

The fourth proportional to 290,673.22, 401,238.66 and 169,853.79 is: 234,462.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,673.22 : 401,238.66 = 169,853.79 : x
  2. Step 2: Convert to fraction form
    290,673.22/401,238.66 = 169,853.79/x
  3. Step 3: Cross multiply
    290,673.22x = 401,238.66 × 169,853.79
  4. Step 4: Simplify right side
    290,673.22x = 68,151,907,095.52
  5. Step 5: Solve for x
    x = 68,151,907,095.52/290,673.22
  6. Step 6: Final answer
    x = 234,462.28

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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.