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Finding the Fourth Proportional to 234,978.85, 352,481.97 and 66,485.08

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Solution

The fourth proportional to 234,978.85, 352,481.97 and 66,485.08 is: 99,731.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,978.85 : 352,481.97 = 66,485.08 : x
  2. Step 2: Convert to fraction form
    234,978.85/352,481.97 = 66,485.08/x
  3. Step 3: Cross multiply
    234,978.85x = 352,481.97 × 66,485.08
  4. Step 4: Simplify right side
    234,978.85x = 23,434,791,974.01
  5. Step 5: Solve for x
    x = 23,434,791,974.01/234,978.85
  6. Step 6: Final answer
    x = 99,731.49

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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.