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Finding the Fourth Proportional to 262,951.40, 394,427.10 and 163,418.60

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Solution

The fourth proportional to 262,951.40, 394,427.10 and 163,418.60 is: 245,127.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,951.40 : 394,427.10 = 163,418.60 : x
  2. Step 2: Convert to fraction form
    262,951.40/394,427.10 = 163,418.60/x
  3. Step 3: Cross multiply
    262,951.40x = 394,427.10 × 163,418.60
  4. Step 4: Simplify right side
    262,951.40x = 64,456,724,484.06
  5. Step 5: Solve for x
    x = 64,456,724,484.06/262,951.40
  6. Step 6: Final answer
    x = 245,127.90

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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.