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Finding the Fourth Proportional to 240.07, 358.48 and 238.63

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Solution

The fourth proportional to 240.07, 358.48 and 238.63 is: 356.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    240.07 : 358.48 = 238.63 : x
  2. Step 2: Convert to fraction form
    240.07/358.48 = 238.63/x
  3. Step 3: Cross multiply
    240.07x = 358.48 × 238.63
  4. Step 4: Simplify right side
    240.07x = 85,542.36
  5. Step 5: Solve for x
    x = 85,542.36/240.07
  6. Step 6: Final answer
    x = 356.33

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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.