Home / 393,166.20-589,619.70-143,815.80

Finding the Fourth Proportional to 393,166.20, 589,619.70 and 143,815.80

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Solution

The fourth proportional to 393,166.20, 589,619.70 and 143,815.80 is: 215,676.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,166.20 : 589,619.70 = 143,815.80 : x
  2. Step 2: Convert to fraction form
    393,166.20/589,619.70 = 143,815.80/x
  3. Step 3: Cross multiply
    393,166.20x = 589,619.70 × 143,815.80
  4. Step 4: Simplify right side
    393,166.20x = 84,796,628,851.26
  5. Step 5: Solve for x
    x = 84,796,628,851.26/393,166.20
  6. Step 6: Final answer
    x = 215,676.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.