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Finding the Fourth Proportional to 446.58, 669.83 and 186.48

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Solution

The fourth proportional to 446.58, 669.83 and 186.48 is: 279.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    446.58 : 669.83 = 186.48 : x
  2. Step 2: Convert to fraction form
    446.58/669.83 = 186.48/x
  3. Step 3: Cross multiply
    446.58x = 669.83 × 186.48
  4. Step 4: Simplify right side
    446.58x = 124,908.97
  5. Step 5: Solve for x
    x = 124,908.97/446.58
  6. Step 6: Final answer
    x = 279.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.