Home / 285,386.56-393,836.34-172,187.44

Finding the Fourth Proportional to 285,386.56, 393,836.34 and 172,187.44

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Solution

The fourth proportional to 285,386.56, 393,836.34 and 172,187.44 is: 237,620.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,386.56 : 393,836.34 = 172,187.44 : x
  2. Step 2: Convert to fraction form
    285,386.56/393,836.34 = 172,187.44/x
  3. Step 3: Cross multiply
    285,386.56x = 393,836.34 × 172,187.44
  4. Step 4: Simplify right side
    285,386.56x = 67,813,670,824.68
  5. Step 5: Solve for x
    x = 67,813,670,824.68/285,386.56
  6. Step 6: Final answer
    x = 237,620.41

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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.