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Finding the Fourth Proportional to 446.23, 615.43 and 334.47

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Solution

The fourth proportional to 446.23, 615.43 and 334.47 is: 461.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    446.23 : 615.43 = 334.47 : x
  2. Step 2: Convert to fraction form
    446.23/615.43 = 334.47/x
  3. Step 3: Cross multiply
    446.23x = 615.43 × 334.47
  4. Step 4: Simplify right side
    446.23x = 205,840.57
  5. Step 5: Solve for x
    x = 205,840.57/446.23
  6. Step 6: Final answer
    x = 461.28

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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.