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Finding the Fourth Proportional to 631.94, 948.01 and 199.07

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Solution

The fourth proportional to 631.94, 948.01 and 199.07 is: 298.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    631.94 : 948.01 = 199.07 : x
  2. Step 2: Convert to fraction form
    631.94/948.01 = 199.07/x
  3. Step 3: Cross multiply
    631.94x = 948.01 × 199.07
  4. Step 4: Simplify right side
    631.94x = 188,714.62
  5. Step 5: Solve for x
    x = 188,714.62/631.94
  6. Step 6: Final answer
    x = 298.63

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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.