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Finding the Fourth Proportional to 451.19, 622.67 and 252.07

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Solution

The fourth proportional to 451.19, 622.67 and 252.07 is: 347.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    451.19 : 622.67 = 252.07 : x
  2. Step 2: Convert to fraction form
    451.19/622.67 = 252.07/x
  3. Step 3: Cross multiply
    451.19x = 622.67 × 252.07
  4. Step 4: Simplify right side
    451.19x = 156,953.61
  5. Step 5: Solve for x
    x = 156,953.61/451.19
  6. Step 6: Final answer
    x = 347.86

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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.