Home / 319,551.28-441,140.56-198,731.49

Finding the Fourth Proportional to 319,551.28, 441,140.56 and 198,731.49

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Solution

The fourth proportional to 319,551.28, 441,140.56 and 198,731.49 is: 274,348.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,551.28 : 441,140.56 = 198,731.49 : x
  2. Step 2: Convert to fraction form
    319,551.28/441,140.56 = 198,731.49/x
  3. Step 3: Cross multiply
    319,551.28x = 441,140.56 × 198,731.49
  4. Step 4: Simplify right side
    319,551.28x = 87,668,518,085.70
  5. Step 5: Solve for x
    x = 87,668,518,085.70/319,551.28
  6. Step 6: Final answer
    x = 274,348.83

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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.