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Finding the Fourth Proportional to 243,243.56, 335,636.06 and 135,796.26

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Solution

The fourth proportional to 243,243.56, 335,636.06 and 135,796.26 is: 187,376.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,243.56 : 335,636.06 = 135,796.26 : x
  2. Step 2: Convert to fraction form
    243,243.56/335,636.06 = 135,796.26/x
  3. Step 3: Cross multiply
    243,243.56x = 335,636.06 × 135,796.26
  4. Step 4: Simplify right side
    243,243.56x = 45,578,121,669.14
  5. Step 5: Solve for x
    x = 45,578,121,669.14/243,243.56
  6. Step 6: Final answer
    x = 187,376.48

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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.