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Finding the Fourth Proportional to 506.89, 760.06 and 214.30

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Solution

The fourth proportional to 506.89, 760.06 and 214.30 is: 321.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    506.89 : 760.06 = 214.30 : x
  2. Step 2: Convert to fraction form
    506.89/760.06 = 214.30/x
  3. Step 3: Cross multiply
    506.89x = 760.06 × 214.30
  4. Step 4: Simplify right side
    506.89x = 162,880.86
  5. Step 5: Solve for x
    x = 162,880.86/506.89
  6. Step 6: Final answer
    x = 321.33

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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.