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Finding the Fourth Proportional to 262,640.22, 394,180.74 and 136,357.98

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Solution

The fourth proportional to 262,640.22, 394,180.74 and 136,357.98 is: 204,651.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,640.22 : 394,180.74 = 136,357.98 : x
  2. Step 2: Convert to fraction form
    262,640.22/394,180.74 = 136,357.98/x
  3. Step 3: Cross multiply
    262,640.22x = 394,180.74 × 136,357.98
  4. Step 4: Simplify right side
    262,640.22x = 53,749,689,461.31
  5. Step 5: Solve for x
    x = 53,749,689,461.31/262,640.22
  6. Step 6: Final answer
    x = 204,651.40

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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.