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Finding the Fourth Proportional to 608.03, 912.06 and 218.06

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Solution

The fourth proportional to 608.03, 912.06 and 218.06 is: 327.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.03 : 912.06 = 218.06 : x
  2. Step 2: Convert to fraction form
    608.03/912.06 = 218.06/x
  3. Step 3: Cross multiply
    608.03x = 912.06 × 218.06
  4. Step 4: Simplify right side
    608.03x = 198,879.24
  5. Step 5: Solve for x
    x = 198,879.24/608.03
  6. Step 6: Final answer
    x = 327.09

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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.