Home / 405,021.33-558,918.60-223,729.37

Finding the Fourth Proportional to 405,021.33, 558,918.60 and 223,729.37

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Solution

The fourth proportional to 405,021.33, 558,918.60 and 223,729.37 is: 308,740.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,021.33 : 558,918.60 = 223,729.37 : x
  2. Step 2: Convert to fraction form
    405,021.33/558,918.60 = 223,729.37/x
  3. Step 3: Cross multiply
    405,021.33x = 558,918.60 × 223,729.37
  4. Step 4: Simplify right side
    405,021.33x = 125,046,503,464.69
  5. Step 5: Solve for x
    x = 125,046,503,464.69/405,021.33
  6. Step 6: Final answer
    x = 308,740.54

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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.