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Finding the Fourth Proportional to 446.64, 668.61 and 359.16

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Solution

The fourth proportional to 446.64, 668.61 and 359.16 is: 537.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    446.64 : 668.61 = 359.16 : x
  2. Step 2: Convert to fraction form
    446.64/668.61 = 359.16/x
  3. Step 3: Cross multiply
    446.64x = 668.61 × 359.16
  4. Step 4: Simplify right side
    446.64x = 240,137.97
  5. Step 5: Solve for x
    x = 240,137.97/446.64
  6. Step 6: Final answer
    x = 537.65

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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.