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Finding the Fourth Proportional to 236,844, 326,844.72 and 136,242

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Solution

The fourth proportional to 236,844, 326,844.72 and 136,242 is: 188,013.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,844 : 326,844.72 = 136,242 : x
  2. Step 2: Convert to fraction form
    236,844/326,844.72 = 136,242/x
  3. Step 3: Cross multiply
    236,844x = 326,844.72 × 136,242
  4. Step 4: Simplify right side
    236,844x = 44,529,978,342.24
  5. Step 5: Solve for x
    x = 44,529,978,342.24/236,844
  6. Step 6: Final answer
    x = 188,013.96

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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.