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Finding the Fourth Proportional to 523.33, 722.18 and 296.18

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Solution

The fourth proportional to 523.33, 722.18 and 296.18 is: 408.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    523.33 : 722.18 = 296.18 : x
  2. Step 2: Convert to fraction form
    523.33/722.18 = 296.18/x
  3. Step 3: Cross multiply
    523.33x = 722.18 × 296.18
  4. Step 4: Simplify right side
    523.33x = 213,895.27
  5. Step 5: Solve for x
    x = 213,895.27/523.33
  6. Step 6: Final answer
    x = 408.72

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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.