Home / 445,277.28-667,923.20-129,751.44

Finding the Fourth Proportional to 445,277.28, 667,923.20 and 129,751.44

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Solution

The fourth proportional to 445,277.28, 667,923.20 and 129,751.44 is: 194,629.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,277.28 : 667,923.20 = 129,751.44 : x
  2. Step 2: Convert to fraction form
    445,277.28/667,923.20 = 129,751.44/x
  3. Step 3: Cross multiply
    445,277.28x = 667,923.20 × 129,751.44
  4. Step 4: Simplify right side
    445,277.28x = 86,663,997,009.41
  5. Step 5: Solve for x
    x = 86,663,997,009.41/445,277.28
  6. Step 6: Final answer
    x = 194,629.28

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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.