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Finding the Fourth Proportional to 357.40, 493.23 and 200.04

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Solution

The fourth proportional to 357.40, 493.23 and 200.04 is: 276.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    357.40 : 493.23 = 200.04 : x
  2. Step 2: Convert to fraction form
    357.40/493.23 = 200.04/x
  3. Step 3: Cross multiply
    357.40x = 493.23 × 200.04
  4. Step 4: Simplify right side
    357.40x = 98,665.73
  5. Step 5: Solve for x
    x = 98,665.73/357.40
  6. Step 6: Final answer
    x = 276.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.