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Finding the Fourth Proportional to 262,677.22, 394,016.12 and 73,138

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Solution

The fourth proportional to 262,677.22, 394,016.12 and 73,138 is: 109,707.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,677.22 : 394,016.12 = 73,138 : x
  2. Step 2: Convert to fraction form
    262,677.22/394,016.12 = 73,138/x
  3. Step 3: Cross multiply
    262,677.22x = 394,016.12 × 73,138
  4. Step 4: Simplify right side
    262,677.22x = 28,817,550,984.56
  5. Step 5: Solve for x
    x = 28,817,550,984.56/262,677.22
  6. Step 6: Final answer
    x = 109,707.08

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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.