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Finding the Fourth Proportional to 325.32, 448.94 and 194.30

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Solution

The fourth proportional to 325.32, 448.94 and 194.30 is: 268.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    325.32 : 448.94 = 194.30 : x
  2. Step 2: Convert to fraction form
    325.32/448.94 = 194.30/x
  3. Step 3: Cross multiply
    325.32x = 448.94 × 194.30
  4. Step 4: Simplify right side
    325.32x = 87,225.83
  5. Step 5: Solve for x
    x = 87,225.83/325.32
  6. Step 6: Final answer
    x = 268.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.