Home / 319,837.40-441,190.58-206,660.15

Finding the Fourth Proportional to 319,837.40, 441,190.58 and 206,660.15

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Solution

The fourth proportional to 319,837.40, 441,190.58 and 206,660.15 is: 285,071.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,837.40 : 441,190.58 = 206,660.15 : x
  2. Step 2: Convert to fraction form
    319,837.40/441,190.58 = 206,660.15/x
  3. Step 3: Cross multiply
    319,837.40x = 441,190.58 × 206,660.15
  4. Step 4: Simplify right side
    319,837.40x = 91,176,513,061.01
  5. Step 5: Solve for x
    x = 91,176,513,061.01/319,837.40
  6. Step 6: Final answer
    x = 285,071.45

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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.