Home / 319,550.82-441,139.93-198,731.03

Finding the Fourth Proportional to 319,550.82, 441,139.93 and 198,731.03

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Solution

The fourth proportional to 319,550.82, 441,139.93 and 198,731.03 is: 274,348.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,550.82 : 441,139.93 = 198,731.03 : x
  2. Step 2: Convert to fraction form
    319,550.82/441,139.93 = 198,731.03/x
  3. Step 3: Cross multiply
    319,550.82x = 441,139.93 × 198,731.03
  4. Step 4: Simplify right side
    319,550.82x = 87,668,192,663.03
  5. Step 5: Solve for x
    x = 87,668,192,663.03/319,550.82
  6. Step 6: Final answer
    x = 274,348.20

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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.