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Finding the Fourth Proportional to 622.89, 934.35 and 190.05

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Solution

The fourth proportional to 622.89, 934.35 and 190.05 is: 285.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    622.89 : 934.35 = 190.05 : x
  2. Step 2: Convert to fraction form
    622.89/934.35 = 190.05/x
  3. Step 3: Cross multiply
    622.89x = 934.35 × 190.05
  4. Step 4: Simplify right side
    622.89x = 177,573.22
  5. Step 5: Solve for x
    x = 177,573.22/622.89
  6. Step 6: Final answer
    x = 285.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.