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Finding the Fourth Proportional to 325.06, 448.56 and 185.15

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Solution

The fourth proportional to 325.06, 448.56 and 185.15 is: 255.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    325.06 : 448.56 = 185.15 : x
  2. Step 2: Convert to fraction form
    325.06/448.56 = 185.15/x
  3. Step 3: Cross multiply
    325.06x = 448.56 × 185.15
  4. Step 4: Simplify right side
    325.06x = 83,052.01
  5. Step 5: Solve for x
    x = 83,052.01/325.06
  6. Step 6: Final answer
    x = 255.50

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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.