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Finding the Fourth Proportional to 351.35, 485.07 and 233.36

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Solution

The fourth proportional to 351.35, 485.07 and 233.36 is: 322.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.35 : 485.07 = 233.36 : x
  2. Step 2: Convert to fraction form
    351.35/485.07 = 233.36/x
  3. Step 3: Cross multiply
    351.35x = 485.07 × 233.36
  4. Step 4: Simplify right side
    351.35x = 113,195.94
  5. Step 5: Solve for x
    x = 113,195.94/351.35
  6. Step 6: Final answer
    x = 322.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.