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Finding the Fourth Proportional to 290,084.08, 400,322.92 and 162,769.09

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Solution

The fourth proportional to 290,084.08, 400,322.92 and 162,769.09 is: 224,625.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,084.08 : 400,322.92 = 162,769.09 : x
  2. Step 2: Convert to fraction form
    290,084.08/400,322.92 = 162,769.09/x
  3. Step 3: Cross multiply
    290,084.08x = 400,322.92 × 162,769.09
  4. Step 4: Simplify right side
    290,084.08x = 65,160,195,392.93
  5. Step 5: Solve for x
    x = 65,160,195,392.93/290,084.08
  6. Step 6: Final answer
    x = 224,625.21

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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.