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Finding the Fourth Proportional to 532.09, 734.21 and 299.17

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Solution

The fourth proportional to 532.09, 734.21 and 299.17 is: 412.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    532.09 : 734.21 = 299.17 : x
  2. Step 2: Convert to fraction form
    532.09/734.21 = 299.17/x
  3. Step 3: Cross multiply
    532.09x = 734.21 × 299.17
  4. Step 4: Simplify right side
    532.09x = 219,652.11
  5. Step 5: Solve for x
    x = 219,652.11/532.09
  6. Step 6: Final answer
    x = 412.81

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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.