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Finding the Fourth Proportional to 553.41, 758.18 and 532.65

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Solution

The fourth proportional to 553.41, 758.18 and 532.65 is: 729.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    553.41 : 758.18 = 532.65 : x
  2. Step 2: Convert to fraction form
    553.41/758.18 = 532.65/x
  3. Step 3: Cross multiply
    553.41x = 758.18 × 532.65
  4. Step 4: Simplify right side
    553.41x = 403,841.91
  5. Step 5: Solve for x
    x = 403,841.91/553.41
  6. Step 6: Final answer
    x = 729.73

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.