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Finding the Fourth Proportional to 451.52, 622.18 and 346.60

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Solution

The fourth proportional to 451.52, 622.18 and 346.60 is: 477.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    451.52 : 622.18 = 346.60 : x
  2. Step 2: Convert to fraction form
    451.52/622.18 = 346.60/x
  3. Step 3: Cross multiply
    451.52x = 622.18 × 346.60
  4. Step 4: Simplify right side
    451.52x = 215,647.59
  5. Step 5: Solve for x
    x = 215,647.59/451.52
  6. Step 6: Final answer
    x = 477.60

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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.