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Finding the Fourth Proportional to 223,716.07, 308,733.87 and 121,747.06

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Solution

The fourth proportional to 223,716.07, 308,733.87 and 121,747.06 is: 168,014.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,716.07 : 308,733.87 = 121,747.06 : x
  2. Step 2: Convert to fraction form
    223,716.07/308,733.87 = 121,747.06/x
  3. Step 3: Cross multiply
    223,716.07x = 308,733.87 × 121,747.06
  4. Step 4: Simplify right side
    223,716.07x = 37,587,440,994.92
  5. Step 5: Solve for x
    x = 37,587,440,994.92/223,716.07
  6. Step 6: Final answer
    x = 168,014.04

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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.