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Finding the Fourth Proportional to 509.74, 764.54 and 163.04

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Solution

The fourth proportional to 509.74, 764.54 and 163.04 is: 244.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    509.74 : 764.54 = 163.04 : x
  2. Step 2: Convert to fraction form
    509.74/764.54 = 163.04/x
  3. Step 3: Cross multiply
    509.74x = 764.54 × 163.04
  4. Step 4: Simplify right side
    509.74x = 124,651.18
  5. Step 5: Solve for x
    x = 124,651.18/509.74
  6. Step 6: Final answer
    x = 244.54

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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.