Home / 259,549.72-389,376.96-109,790.44

Finding the Fourth Proportional to 259,549.72, 389,376.96 and 109,790.44

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Solution

The fourth proportional to 259,549.72, 389,376.96 and 109,790.44 is: 164,707.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,549.72 : 389,376.96 = 109,790.44 : x
  2. Step 2: Convert to fraction form
    259,549.72/389,376.96 = 109,790.44/x
  3. Step 3: Cross multiply
    259,549.72x = 389,376.96 × 109,790.44
  4. Step 4: Simplify right side
    259,549.72x = 42,749,867,764.26
  5. Step 5: Solve for x
    x = 42,749,867,764.26/259,549.72
  6. Step 6: Final answer
    x = 164,707.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.