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Finding the Fourth Proportional to 623.21, 934.94 and 190.35

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Solution

The fourth proportional to 623.21, 934.94 and 190.35 is: 285.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    623.21 : 934.94 = 190.35 : x
  2. Step 2: Convert to fraction form
    623.21/934.94 = 190.35/x
  3. Step 3: Cross multiply
    623.21x = 934.94 × 190.35
  4. Step 4: Simplify right side
    623.21x = 177,964.88
  5. Step 5: Solve for x
    x = 177,964.88/623.21
  6. Step 6: Final answer
    x = 285.56

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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.