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Finding the Fourth Proportional to 863.58, 1,295.04 and 369.94

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Solution

The fourth proportional to 863.58, 1,295.04 and 369.94 is: 554.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    863.58 : 1,295.04 = 369.94 : x
  2. Step 2: Convert to fraction form
    863.58/1,295.04 = 369.94/x
  3. Step 3: Cross multiply
    863.58x = 1,295.04 × 369.94
  4. Step 4: Simplify right side
    863.58x = 479,087.10
  5. Step 5: Solve for x
    x = 479,087.10/863.58
  6. Step 6: Final answer
    x = 554.77

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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.