Home / 319,551.26-441,140.54-198,731.47

Finding the Fourth Proportional to 319,551.26, 441,140.54 and 198,731.47

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Solution

The fourth proportional to 319,551.26, 441,140.54 and 198,731.47 is: 274,348.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,551.26 : 441,140.54 = 198,731.47 : x
  2. Step 2: Convert to fraction form
    319,551.26/441,140.54 = 198,731.47/x
  3. Step 3: Cross multiply
    319,551.26x = 441,140.54 × 198,731.47
  4. Step 4: Simplify right side
    319,551.26x = 87,668,506,997.14
  5. Step 5: Solve for x
    x = 87,668,506,997.14/319,551.26
  6. Step 6: Final answer
    x = 274,348.81

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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.