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Finding the Fourth Proportional to 262,889.88, 394,356.66 and 105,032.28

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Solution

The fourth proportional to 262,889.88, 394,356.66 and 105,032.28 is: 157,557.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,889.88 : 394,356.66 = 105,032.28 : x
  2. Step 2: Convert to fraction form
    262,889.88/394,356.66 = 105,032.28/x
  3. Step 3: Cross multiply
    262,889.88x = 394,356.66 × 105,032.28
  4. Step 4: Simplify right side
    262,889.88x = 41,420,179,132.98
  5. Step 5: Solve for x
    x = 41,420,179,132.98/262,889.88
  6. Step 6: Final answer
    x = 157,557.15

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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.