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Finding the Fourth Proportional to 243,304.37, 335,765.07 and 135,874.51

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Solution

The fourth proportional to 243,304.37, 335,765.07 and 135,874.51 is: 187,509.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,304.37 : 335,765.07 = 135,874.51 : x
  2. Step 2: Convert to fraction form
    243,304.37/335,765.07 = 135,874.51/x
  3. Step 3: Cross multiply
    243,304.37x = 335,765.07 × 135,874.51
  4. Step 4: Simplify right side
    243,304.37x = 45,621,914,361.37
  5. Step 5: Solve for x
    x = 45,621,914,361.37/243,304.37
  6. Step 6: Final answer
    x = 187,509.64

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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.