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Finding the Fourth Proportional to 367.90, 554.54 and 346.73

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Solution

The fourth proportional to 367.90, 554.54 and 346.73 is: 522.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    367.90 : 554.54 = 346.73 : x
  2. Step 2: Convert to fraction form
    367.90/554.54 = 346.73/x
  3. Step 3: Cross multiply
    367.90x = 554.54 × 346.73
  4. Step 4: Simplify right side
    367.90x = 192,271.15
  5. Step 5: Solve for x
    x = 192,271.15/367.90
  6. Step 6: Final answer
    x = 522.62

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.