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Finding the Fourth Proportional to 223,285.68, 308,137.73 and 121,313.16

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Solution

The fourth proportional to 223,285.68, 308,137.73 and 121,313.16 is: 167,414.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,285.68 : 308,137.73 = 121,313.16 : x
  2. Step 2: Convert to fraction form
    223,285.68/308,137.73 = 121,313.16/x
  3. Step 3: Cross multiply
    223,285.68x = 308,137.73 × 121,313.16
  4. Step 4: Simplify right side
    223,285.68x = 37,381,161,134.96
  5. Step 5: Solve for x
    x = 37,381,161,134.96/223,285.68
  6. Step 6: Final answer
    x = 167,414.06

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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.