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Finding the Fourth Proportional to 217,234.44, 325,427.44 and 103,220

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Solution

The fourth proportional to 217,234.44, 325,427.44 and 103,220 is: 154,628.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,234.44 : 325,427.44 = 103,220 : x
  2. Step 2: Convert to fraction form
    217,234.44/325,427.44 = 103,220/x
  3. Step 3: Cross multiply
    217,234.44x = 325,427.44 × 103,220
  4. Step 4: Simplify right side
    217,234.44x = 33,590,620,356.80
  5. Step 5: Solve for x
    x = 33,590,620,356.80/217,234.44
  6. Step 6: Final answer
    x = 154,628.43

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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.