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Finding the Fourth Proportional to 446.72, 616.49 and 247.56

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Solution

The fourth proportional to 446.72, 616.49 and 247.56 is: 341.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    446.72 : 616.49 = 247.56 : x
  2. Step 2: Convert to fraction form
    446.72/616.49 = 247.56/x
  3. Step 3: Cross multiply
    446.72x = 616.49 × 247.56
  4. Step 4: Simplify right side
    446.72x = 152,617.03
  5. Step 5: Solve for x
    x = 152,617.03/446.72
  6. Step 6: Final answer
    x = 341.64

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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.