Home / 322,739.24-445,453.63-209,365.16

Finding the Fourth Proportional to 322,739.24, 445,453.63 and 209,365.16

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Solution

The fourth proportional to 322,739.24, 445,453.63 and 209,365.16 is: 288,971.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,739.24 : 445,453.63 = 209,365.16 : x
  2. Step 2: Convert to fraction form
    322,739.24/445,453.63 = 209,365.16/x
  3. Step 3: Cross multiply
    322,739.24x = 445,453.63 × 209,365.16
  4. Step 4: Simplify right side
    322,739.24x = 93,262,467,766.85
  5. Step 5: Solve for x
    x = 93,262,467,766.85/322,739.24
  6. Step 6: Final answer
    x = 288,971.58

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1.5x scale

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.