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Finding the Fourth Proportional to 776.00, 1,163.93 and 255.99

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Solution

The fourth proportional to 776.00, 1,163.93 and 255.99 is: 383.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    776.00 : 1,163.93 = 255.99 : x
  2. Step 2: Convert to fraction form
    776.00/1,163.93 = 255.99/x
  3. Step 3: Cross multiply
    776.00x = 1,163.93 × 255.99
  4. Step 4: Simplify right side
    776.00x = 297,953.16
  5. Step 5: Solve for x
    x = 297,953.16/776.00
  6. Step 6: Final answer
    x = 383.96

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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.