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Finding the Fourth Proportional to 509.33, 764.06 and 235.48

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Solution

The fourth proportional to 509.33, 764.06 and 235.48 is: 353.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    509.33 : 764.06 = 235.48 : x
  2. Step 2: Convert to fraction form
    509.33/764.06 = 235.48/x
  3. Step 3: Cross multiply
    509.33x = 764.06 × 235.48
  4. Step 4: Simplify right side
    509.33x = 179,917.76
  5. Step 5: Solve for x
    x = 179,917.76/509.33
  6. Step 6: Final answer
    x = 353.25

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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.