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Finding the Fourth Proportional to 403.50, 556.94 and 263.97

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Solution

The fourth proportional to 403.50, 556.94 and 263.97 is: 364.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    403.50 : 556.94 = 263.97 : x
  2. Step 2: Convert to fraction form
    403.50/556.94 = 263.97/x
  3. Step 3: Cross multiply
    403.50x = 556.94 × 263.97
  4. Step 4: Simplify right side
    403.50x = 147,015.45
  5. Step 5: Solve for x
    x = 147,015.45/403.50
  6. Step 6: Final answer
    x = 364.35

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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.