Home / 223,375.30-308,256.76-121,399.14

Finding the Fourth Proportional to 223,375.30, 308,256.76 and 121,399.14

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Solution

The fourth proportional to 223,375.30, 308,256.76 and 121,399.14 is: 167,530.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,375.30 : 308,256.76 = 121,399.14 : x
  2. Step 2: Convert to fraction form
    223,375.30/308,256.76 = 121,399.14/x
  3. Step 3: Cross multiply
    223,375.30x = 308,256.76 × 121,399.14
  4. Step 4: Simplify right side
    223,375.30x = 37,422,105,563.19
  5. Step 5: Solve for x
    x = 37,422,105,563.19/223,375.30
  6. Step 6: Final answer
    x = 167,530.19

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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.