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Finding the Fourth Proportional to 446.86, 616.68 and 247.70

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Solution

The fourth proportional to 446.86, 616.68 and 247.70 is: 341.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    446.86 : 616.68 = 247.70 : x
  2. Step 2: Convert to fraction form
    446.86/616.68 = 247.70/x
  3. Step 3: Cross multiply
    446.86x = 616.68 × 247.70
  4. Step 4: Simplify right side
    446.86x = 152,751.64
  5. Step 5: Solve for x
    x = 152,751.64/446.86
  6. Step 6: Final answer
    x = 341.83

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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.