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Finding the Fourth Proportional to 644.07, 965.27 and 292.41

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Solution

The fourth proportional to 644.07, 965.27 and 292.41 is: 438.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    644.07 : 965.27 = 292.41 : x
  2. Step 2: Convert to fraction form
    644.07/965.27 = 292.41/x
  3. Step 3: Cross multiply
    644.07x = 965.27 × 292.41
  4. Step 4: Simplify right side
    644.07x = 282,253.14
  5. Step 5: Solve for x
    x = 282,253.14/644.07
  6. Step 6: Final answer
    x = 438.23

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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.