Home / 481,218.75-664,257.11-280,014.75

Finding the Fourth Proportional to 481,218.75, 664,257.11 and 280,014.75

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Solution

The fourth proportional to 481,218.75, 664,257.11 and 280,014.75 is: 386,522.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,218.75 : 664,257.11 = 280,014.75 : x
  2. Step 2: Convert to fraction form
    481,218.75/664,257.11 = 280,014.75/x
  3. Step 3: Cross multiply
    481,218.75x = 664,257.11 × 280,014.75
  4. Step 4: Simplify right side
    481,218.75x = 186,001,787,192.30
  5. Step 5: Solve for x
    x = 186,001,787,192.30/481,218.75
  6. Step 6: Final answer
    x = 386,522.32

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1.5x scale

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.