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Finding the Fourth Proportional to 243,084.48, 335,473.38 and 135,675.48

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Solution

The fourth proportional to 243,084.48, 335,473.38 and 135,675.48 is: 187,241.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,084.48 : 335,473.38 = 135,675.48 : x
  2. Step 2: Convert to fraction form
    243,084.48/335,473.38 = 135,675.48/x
  3. Step 3: Cross multiply
    243,084.48x = 335,473.38 × 135,675.48
  4. Step 4: Simplify right side
    243,084.48x = 45,515,511,858.72
  5. Step 5: Solve for x
    x = 45,515,511,858.72/243,084.48
  6. Step 6: Final answer
    x = 187,241.54

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1.5x scale

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.