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Finding the Fourth Proportional to 508.02, 763.24 and 325.77

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Solution

The fourth proportional to 508.02, 763.24 and 325.77 is: 489.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    508.02 : 763.24 = 325.77 : x
  2. Step 2: Convert to fraction form
    508.02/763.24 = 325.77/x
  3. Step 3: Cross multiply
    508.02x = 763.24 × 325.77
  4. Step 4: Simplify right side
    508.02x = 248,640.69
  5. Step 5: Solve for x
    x = 248,640.69/508.02
  6. Step 6: Final answer
    x = 489.43

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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.