Home / 405,028.37-558,891.25-223,729.43

Finding the Fourth Proportional to 405,028.37, 558,891.25 and 223,729.43

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Solution

The fourth proportional to 405,028.37, 558,891.25 and 223,729.43 is: 308,720.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,028.37 : 558,891.25 = 223,729.43 : x
  2. Step 2: Convert to fraction form
    405,028.37/558,891.25 = 223,729.43/x
  3. Step 3: Cross multiply
    405,028.37x = 558,891.25 × 223,729.43
  4. Step 4: Simplify right side
    405,028.37x = 125,040,417,440.71
  5. Step 5: Solve for x
    x = 125,040,417,440.71/405,028.37
  6. Step 6: Final answer
    x = 308,720.14

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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.