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Finding the Fourth Proportional to 240.43, 358.75 and 238.10

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Solution

The fourth proportional to 240.43, 358.75 and 238.10 is: 355.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    240.43 : 358.75 = 238.10 : x
  2. Step 2: Convert to fraction form
    240.43/358.75 = 238.10/x
  3. Step 3: Cross multiply
    240.43x = 358.75 × 238.10
  4. Step 4: Simplify right side
    240.43x = 85,416.55
  5. Step 5: Solve for x
    x = 85,416.55/240.43
  6. Step 6: Final answer
    x = 355.27

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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.