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Finding the Fourth Proportional to 243,102.09, 335,425.13 and 146,279.96

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Solution

The fourth proportional to 243,102.09, 335,425.13 and 146,279.96 is: 201,832.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,102.09 : 335,425.13 = 146,279.96 : x
  2. Step 2: Convert to fraction form
    243,102.09/335,425.13 = 146,279.96/x
  3. Step 3: Cross multiply
    243,102.09x = 335,425.13 × 146,279.96
  4. Step 4: Simplify right side
    243,102.09x = 49,065,972,190.87
  5. Step 5: Solve for x
    x = 49,065,972,190.87/243,102.09
  6. Step 6: Final answer
    x = 201,832.79

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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.