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Finding the Fourth Proportional to 532.61, 734.81 and 322.63

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Solution

The fourth proportional to 532.61, 734.81 and 322.63 is: 445.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    532.61 : 734.81 = 322.63 : x
  2. Step 2: Convert to fraction form
    532.61/734.81 = 322.63/x
  3. Step 3: Cross multiply
    532.61x = 734.81 × 322.63
  4. Step 4: Simplify right side
    532.61x = 237,072.43
  5. Step 5: Solve for x
    x = 237,072.43/532.61
  6. Step 6: Final answer
    x = 445.12

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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.