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Finding the Fourth Proportional to 631.96, 947.66 and 246.94

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Solution

The fourth proportional to 631.96, 947.66 and 246.94 is: 370.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    631.96 : 947.66 = 246.94 : x
  2. Step 2: Convert to fraction form
    631.96/947.66 = 246.94/x
  3. Step 3: Cross multiply
    631.96x = 947.66 × 246.94
  4. Step 4: Simplify right side
    631.96x = 234,013.41
  5. Step 5: Solve for x
    x = 234,013.41/631.96
  6. Step 6: Final answer
    x = 370.30

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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.