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Finding the Fourth Proportional to 236,640, 326,563.20 and 161,320.32

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Solution

The fourth proportional to 236,640, 326,563.20 and 161,320.32 is: 222,622.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,640 : 326,563.20 = 161,320.32 : x
  2. Step 2: Convert to fraction form
    236,640/326,563.20 = 161,320.32/x
  3. Step 3: Cross multiply
    236,640x = 326,563.20 × 161,320.32
  4. Step 4: Simplify right side
    236,640x = 52,681,279,924.22
  5. Step 5: Solve for x
    x = 52,681,279,924.22/236,640
  6. Step 6: Final answer
    x = 222,622.04

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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.