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Finding the Fourth Proportional to 449.11, 619.82 and 262.57

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Solution

The fourth proportional to 449.11, 619.82 and 262.57 is: 362.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    449.11 : 619.82 = 262.57 : x
  2. Step 2: Convert to fraction form
    449.11/619.82 = 262.57/x
  3. Step 3: Cross multiply
    449.11x = 619.82 × 262.57
  4. Step 4: Simplify right side
    449.11x = 162,746.14
  5. Step 5: Solve for x
    x = 162,746.14/449.11
  6. Step 6: Final answer
    x = 362.37

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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.