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Finding the Fourth Proportional to 532.56, 734.10 and 445.08

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Solution

The fourth proportional to 532.56, 734.10 and 445.08 is: 613.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    532.56 : 734.10 = 445.08 : x
  2. Step 2: Convert to fraction form
    532.56/734.10 = 445.08/x
  3. Step 3: Cross multiply
    532.56x = 734.10 × 445.08
  4. Step 4: Simplify right side
    532.56x = 326,733.23
  5. Step 5: Solve for x
    x = 326,733.23/532.56
  6. Step 6: Final answer
    x = 613.51

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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.