Home / 262,974.40-394,811.56-138,402.88

Finding the Fourth Proportional to 262,974.40, 394,811.56 and 138,402.88

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Solution

The fourth proportional to 262,974.40, 394,811.56 and 138,402.88 is: 207,788.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,974.40 : 394,811.56 = 138,402.88 : x
  2. Step 2: Convert to fraction form
    262,974.40/394,811.56 = 138,402.88/x
  3. Step 3: Cross multiply
    262,974.40x = 394,811.56 × 138,402.88
  4. Step 4: Simplify right side
    262,974.40x = 54,643,056,961.29
  5. Step 5: Solve for x
    x = 54,643,056,961.29/262,974.40
  6. Step 6: Final answer
    x = 207,788.50

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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.