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Finding the Fourth Proportional to 777.72, 1,166.73 and 367.32

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Solution

The fourth proportional to 777.72, 1,166.73 and 367.32 is: 551.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    777.72 : 1,166.73 = 367.32 : x
  2. Step 2: Convert to fraction form
    777.72/1,166.73 = 367.32/x
  3. Step 3: Cross multiply
    777.72x = 1,166.73 × 367.32
  4. Step 4: Simplify right side
    777.72x = 428,563.26
  5. Step 5: Solve for x
    x = 428,563.26/777.72
  6. Step 6: Final answer
    x = 551.05

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.