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Finding the Fourth Proportional to 626.73, 940.10 and 193.89

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Solution

The fourth proportional to 626.73, 940.10 and 193.89 is: 290.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    626.73 : 940.10 = 193.89 : x
  2. Step 2: Convert to fraction form
    626.73/940.10 = 193.89/x
  3. Step 3: Cross multiply
    626.73x = 940.10 × 193.89
  4. Step 4: Simplify right side
    626.73x = 182,275.02
  5. Step 5: Solve for x
    x = 182,275.02/626.73
  6. Step 6: Final answer
    x = 290.84

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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.