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Finding the Fourth Proportional to 518.60, 777.46 and 244.50

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Solution

The fourth proportional to 518.60, 777.46 and 244.50 is: 366.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    518.60 : 777.46 = 244.50 : x
  2. Step 2: Convert to fraction form
    518.60/777.46 = 244.50/x
  3. Step 3: Cross multiply
    518.60x = 777.46 × 244.50
  4. Step 4: Simplify right side
    518.60x = 190,091.73
  5. Step 5: Solve for x
    x = 190,091.73/518.60
  6. Step 6: Final answer
    x = 366.54

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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.