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Finding the Fourth Proportional to 446.04, 672.17 and 418.68

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Solution

The fourth proportional to 446.04, 672.17 and 418.68 is: 630.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    446.04 : 672.17 = 418.68 : x
  2. Step 2: Convert to fraction form
    446.04/672.17 = 418.68/x
  3. Step 3: Cross multiply
    446.04x = 672.17 × 418.68
  4. Step 4: Simplify right side
    446.04x = 281,422.04
  5. Step 5: Solve for x
    x = 281,422.04/446.04
  6. Step 6: Final answer
    x = 630.93

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.