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Finding the Fourth Proportional to 446.51, 668.40 and 240.57

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Solution

The fourth proportional to 446.51, 668.40 and 240.57 is: 360.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    446.51 : 668.40 = 240.57 : x
  2. Step 2: Convert to fraction form
    446.51/668.40 = 240.57/x
  3. Step 3: Cross multiply
    446.51x = 668.40 × 240.57
  4. Step 4: Simplify right side
    446.51x = 160,797.44
  5. Step 5: Solve for x
    x = 160,797.44/446.51
  6. Step 6: Final answer
    x = 360.12

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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.