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Finding the Fourth Proportional to 370.99, 554.37 and 282.66

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Solution

The fourth proportional to 370.99, 554.37 and 282.66 is: 422.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    370.99 : 554.37 = 282.66 : x
  2. Step 2: Convert to fraction form
    370.99/554.37 = 282.66/x
  3. Step 3: Cross multiply
    370.99x = 554.37 × 282.66
  4. Step 4: Simplify right side
    370.99x = 156,696.60
  5. Step 5: Solve for x
    x = 156,696.60/370.99
  6. Step 6: Final answer
    x = 422.37

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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.