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Finding the Fourth Proportional to 223,314.75, 308,179.23 and 122,712.75

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Solution

The fourth proportional to 223,314.75, 308,179.23 and 122,712.75 is: 169,346.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,314.75 : 308,179.23 = 122,712.75 : x
  2. Step 2: Convert to fraction form
    223,314.75/308,179.23 = 122,712.75/x
  3. Step 3: Cross multiply
    223,314.75x = 308,179.23 × 122,712.75
  4. Step 4: Simplify right side
    223,314.75x = 37,817,520,806.18
  5. Step 5: Solve for x
    x = 37,817,520,806.18/223,314.75
  6. Step 6: Final answer
    x = 169,346.27

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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.