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Finding the Fourth Proportional to 606.09, 909.08 and 240.78

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Solution

The fourth proportional to 606.09, 909.08 and 240.78 is: 361.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.09 : 909.08 = 240.78 : x
  2. Step 2: Convert to fraction form
    606.09/909.08 = 240.78/x
  3. Step 3: Cross multiply
    606.09x = 909.08 × 240.78
  4. Step 4: Simplify right side
    606.09x = 218,888.28
  5. Step 5: Solve for x
    x = 218,888.28/606.09
  6. Step 6: Final answer
    x = 361.15

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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.