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Finding the Fourth Proportional to 446.31, 669.15 and 240.66

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Solution

The fourth proportional to 446.31, 669.15 and 240.66 is: 360.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    446.31 : 669.15 = 240.66 : x
  2. Step 2: Convert to fraction form
    446.31/669.15 = 240.66/x
  3. Step 3: Cross multiply
    446.31x = 669.15 × 240.66
  4. Step 4: Simplify right side
    446.31x = 161,037.64
  5. Step 5: Solve for x
    x = 161,037.64/446.31
  6. Step 6: Final answer
    x = 360.82

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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.