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Finding the Fourth Proportional to 263,304.60, 394,948.02 and 105,490.68

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Solution

The fourth proportional to 263,304.60, 394,948.02 and 105,490.68 is: 158,232.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,304.60 : 394,948.02 = 105,490.68 : x
  2. Step 2: Convert to fraction form
    263,304.60/394,948.02 = 105,490.68/x
  3. Step 3: Cross multiply
    263,304.60x = 394,948.02 × 105,490.68
  4. Step 4: Simplify right side
    263,304.60x = 41,663,335,194.45
  5. Step 5: Solve for x
    x = 41,663,335,194.45/263,304.60
  6. Step 6: Final answer
    x = 158,232.46

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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.