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Finding the Fourth Proportional to 532.25, 734.54 and 299.39

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Solution

The fourth proportional to 532.25, 734.54 and 299.39 is: 413.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    532.25 : 734.54 = 299.39 : x
  2. Step 2: Convert to fraction form
    532.25/734.54 = 299.39/x
  3. Step 3: Cross multiply
    532.25x = 734.54 × 299.39
  4. Step 4: Simplify right side
    532.25x = 219,913.93
  5. Step 5: Solve for x
    x = 219,913.93/532.25
  6. Step 6: Final answer
    x = 413.18

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Double scale
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Similar ratio
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1.5x scale

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.