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Finding the Fourth Proportional to 451.30, 622.79 and 244.30

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Solution

The fourth proportional to 451.30, 622.79 and 244.30 is: 337.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    451.30 : 622.79 = 244.30 : x
  2. Step 2: Convert to fraction form
    451.30/622.79 = 244.30/x
  3. Step 3: Cross multiply
    451.30x = 622.79 × 244.30
  4. Step 4: Simplify right side
    451.30x = 152,146.04
  5. Step 5: Solve for x
    x = 152,146.04/451.30
  6. Step 6: Final answer
    x = 337.13

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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.