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Finding the Fourth Proportional to 455.22, 628.36 and 337.37

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Solution

The fourth proportional to 455.22, 628.36 and 337.37 is: 465.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    455.22 : 628.36 = 337.37 : x
  2. Step 2: Convert to fraction form
    455.22/628.36 = 337.37/x
  3. Step 3: Cross multiply
    455.22x = 628.36 × 337.37
  4. Step 4: Simplify right side
    455.22x = 211,985.83
  5. Step 5: Solve for x
    x = 211,985.83/455.22
  6. Step 6: Final answer
    x = 465.68

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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.