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Finding the Fourth Proportional to 258,157.96, 356,249.94 and 141,871.15

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Solution

The fourth proportional to 258,157.96, 356,249.94 and 141,871.15 is: 195,777.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,157.96 : 356,249.94 = 141,871.15 : x
  2. Step 2: Convert to fraction form
    258,157.96/356,249.94 = 141,871.15/x
  3. Step 3: Cross multiply
    258,157.96x = 356,249.94 × 141,871.15
  4. Step 4: Simplify right side
    258,157.96x = 50,541,589,085.08
  5. Step 5: Solve for x
    x = 50,541,589,085.08/258,157.96
  6. Step 6: Final answer
    x = 195,777.77

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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.