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Finding the Fourth Proportional to 240.04, 357.26 and 238.69

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Solution

The fourth proportional to 240.04, 357.26 and 238.69 is: 355.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    240.04 : 357.26 = 238.69 : x
  2. Step 2: Convert to fraction form
    240.04/357.26 = 238.69/x
  3. Step 3: Cross multiply
    240.04x = 357.26 × 238.69
  4. Step 4: Simplify right side
    240.04x = 85,274.39
  5. Step 5: Solve for x
    x = 85,274.39/240.04
  6. Step 6: Final answer
    x = 355.25

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.