Home / 223,238.68-308,074.54-121,268.18

Finding the Fourth Proportional to 223,238.68, 308,074.54 and 121,268.18

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Solution

The fourth proportional to 223,238.68, 308,074.54 and 121,268.18 is: 167,352.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,238.68 : 308,074.54 = 121,268.18 : x
  2. Step 2: Convert to fraction form
    223,238.68/308,074.54 = 121,268.18/x
  3. Step 3: Cross multiply
    223,238.68x = 308,074.54 × 121,268.18
  4. Step 4: Simplify right side
    223,238.68x = 37,359,638,770.14
  5. Step 5: Solve for x
    x = 37,359,638,770.14/223,238.68
  6. Step 6: Final answer
    x = 167,352.89

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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.