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Finding the Fourth Proportional to 262,989.44, 394,212 and 129,691.52

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Solution

The fourth proportional to 262,989.44, 394,212 and 129,691.52 is: 194,403.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,989.44 : 394,212 = 129,691.52 : x
  2. Step 2: Convert to fraction form
    262,989.44/394,212 = 129,691.52/x
  3. Step 3: Cross multiply
    262,989.44x = 394,212 × 129,691.52
  4. Step 4: Simplify right side
    262,989.44x = 51,125,953,482.24
  5. Step 5: Solve for x
    x = 51,125,953,482.24/262,989.44
  6. Step 6: Final answer
    x = 194,403.07

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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.