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Finding the Fourth Proportional to 606.28, 909.11 and 216.13

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Solution

The fourth proportional to 606.28, 909.11 and 216.13 is: 324.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.28 : 909.11 = 216.13 : x
  2. Step 2: Convert to fraction form
    606.28/909.11 = 216.13/x
  3. Step 3: Cross multiply
    606.28x = 909.11 × 216.13
  4. Step 4: Simplify right side
    606.28x = 196,484.86
  5. Step 5: Solve for x
    x = 196,484.86/606.28
  6. Step 6: Final answer
    x = 324.08

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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.