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Finding the Fourth Proportional to 506.08, 758.80 and 323.70

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Solution

The fourth proportional to 506.08, 758.80 and 323.70 is: 485.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    506.08 : 758.80 = 323.70 : x
  2. Step 2: Convert to fraction form
    506.08/758.80 = 323.70/x
  3. Step 3: Cross multiply
    506.08x = 758.80 × 323.70
  4. Step 4: Simplify right side
    506.08x = 245,623.56
  5. Step 5: Solve for x
    x = 245,623.56/506.08
  6. Step 6: Final answer
    x = 485.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.