Home / 445,664.58-668,164.49-268,130.30

Finding the Fourth Proportional to 445,664.58, 668,164.49 and 268,130.30

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Solution

The fourth proportional to 445,664.58, 668,164.49 and 268,130.30 is: 401,995.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,664.58 : 668,164.49 = 268,130.30 : x
  2. Step 2: Convert to fraction form
    445,664.58/668,164.49 = 268,130.30/x
  3. Step 3: Cross multiply
    445,664.58x = 668,164.49 × 268,130.30
  4. Step 4: Simplify right side
    445,664.58x = 179,155,146,743.72
  5. Step 5: Solve for x
    x = 179,155,146,743.72/445,664.58
  6. Step 6: Final answer
    x = 401,995.48

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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.