Home / 223,337.09-308,207.19-121,362.55

Finding the Fourth Proportional to 223,337.09, 308,207.19 and 121,362.55

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Solution

The fourth proportional to 223,337.09, 308,207.19 and 121,362.55 is: 167,481.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,337.09 : 308,207.19 = 121,362.55 : x
  2. Step 2: Convert to fraction form
    223,337.09/308,207.19 = 121,362.55/x
  3. Step 3: Cross multiply
    223,337.09x = 308,207.19 × 121,362.55
  4. Step 4: Simplify right side
    223,337.09x = 37,404,811,412.99
  5. Step 5: Solve for x
    x = 37,404,811,412.99/223,337.09
  6. Step 6: Final answer
    x = 167,481.42

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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.