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Finding the Fourth Proportional to 606.28, 909.23 and 317.56

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Solution

The fourth proportional to 606.28, 909.23 and 317.56 is: 476.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.28 : 909.23 = 317.56 : x
  2. Step 2: Convert to fraction form
    606.28/909.23 = 317.56/x
  3. Step 3: Cross multiply
    606.28x = 909.23 × 317.56
  4. Step 4: Simplify right side
    606.28x = 288,735.08
  5. Step 5: Solve for x
    x = 288,735.08/606.28
  6. Step 6: Final answer
    x = 476.24

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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.