Home / 442,986.36-664,544.74-143,367.36

Finding the Fourth Proportional to 442,986.36, 664,544.74 and 143,367.36

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Solution

The fourth proportional to 442,986.36, 664,544.74 and 143,367.36 is: 215,072.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,986.36 : 664,544.74 = 143,367.36 : x
  2. Step 2: Convert to fraction form
    442,986.36/664,544.74 = 143,367.36/x
  3. Step 3: Cross multiply
    442,986.36x = 664,544.74 × 143,367.36
  4. Step 4: Simplify right side
    442,986.36x = 95,274,024,975.69
  5. Step 5: Solve for x
    x = 95,274,024,975.69/442,986.36
  6. Step 6: Final answer
    x = 215,072.14

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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.