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Finding the Fourth Proportional to 450.17, 671.37 and 406.43

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Solution

The fourth proportional to 450.17, 671.37 and 406.43 is: 606.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    450.17 : 671.37 = 406.43 : x
  2. Step 2: Convert to fraction form
    450.17/671.37 = 406.43/x
  3. Step 3: Cross multiply
    450.17x = 671.37 × 406.43
  4. Step 4: Simplify right side
    450.17x = 272,862.55
  5. Step 5: Solve for x
    x = 272,862.55/450.17
  6. Step 6: Final answer
    x = 606.13

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.