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Finding the Fourth Proportional to 223,718.54, 308,738.03 and 121,750.56

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Solution

The fourth proportional to 223,718.54, 308,738.03 and 121,750.56 is: 168,019.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,718.54 : 308,738.03 = 121,750.56 : x
  2. Step 2: Convert to fraction form
    223,718.54/308,738.03 = 121,750.56/x
  3. Step 3: Cross multiply
    223,718.54x = 308,738.03 × 121,750.56
  4. Step 4: Simplify right side
    223,718.54x = 37,589,027,437.04
  5. Step 5: Solve for x
    x = 37,589,027,437.04/223,718.54
  6. Step 6: Final answer
    x = 168,019.28

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1.5x scale

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.