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Finding the Fourth Proportional to 305,960.80, 458,763 and 118,753.60

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Solution

The fourth proportional to 305,960.80, 458,763 and 118,753.60 is: 178,061.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,960.80 : 458,763 = 118,753.60 : x
  2. Step 2: Convert to fraction form
    305,960.80/458,763 = 118,753.60/x
  3. Step 3: Cross multiply
    305,960.80x = 458,763 × 118,753.60
  4. Step 4: Simplify right side
    305,960.80x = 54,479,757,796.80
  5. Step 5: Solve for x
    x = 54,479,757,796.80/305,960.80
  6. Step 6: Final answer
    x = 178,061.23

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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.