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Finding the Fourth Proportional to 240.02, 358.41 and 238.58

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Solution

The fourth proportional to 240.02, 358.41 and 238.58 is: 356.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    240.02 : 358.41 = 238.58 : x
  2. Step 2: Convert to fraction form
    240.02/358.41 = 238.58/x
  3. Step 3: Cross multiply
    240.02x = 358.41 × 238.58
  4. Step 4: Simplify right side
    240.02x = 85,509.90
  5. Step 5: Solve for x
    x = 85,509.90/240.02
  6. Step 6: Final answer
    x = 356.26

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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.