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Finding the Fourth Proportional to 223,209, 308,049.08 and 122,626.44

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Solution

The fourth proportional to 223,209, 308,049.08 and 122,626.44 is: 169,235.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,209 : 308,049.08 = 122,626.44 : x
  2. Step 2: Convert to fraction form
    223,209/308,049.08 = 122,626.44/x
  3. Step 3: Cross multiply
    223,209x = 308,049.08 × 122,626.44
  4. Step 4: Simplify right side
    223,209x = 37,774,961,412.54
  5. Step 5: Solve for x
    x = 37,774,961,412.54/223,209
  6. Step 6: Final answer
    x = 169,235.83

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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.