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Finding the Fourth Proportional to 563.55, 777.43 and 366.99

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Solution

The fourth proportional to 563.55, 777.43 and 366.99 is: 506.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    563.55 : 777.43 = 366.99 : x
  2. Step 2: Convert to fraction form
    563.55/777.43 = 366.99/x
  3. Step 3: Cross multiply
    563.55x = 777.43 × 366.99
  4. Step 4: Simplify right side
    563.55x = 285,309.04
  5. Step 5: Solve for x
    x = 285,309.04/563.55
  6. Step 6: Final answer
    x = 506.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.