Home / 397,112.06-548,018.88-215,824

Finding the Fourth Proportional to 397,112.06, 548,018.88 and 215,824

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Solution

The fourth proportional to 397,112.06, 548,018.88 and 215,824 is: 297,839.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,112.06 : 548,018.88 = 215,824 : x
  2. Step 2: Convert to fraction form
    397,112.06/548,018.88 = 215,824/x
  3. Step 3: Cross multiply
    397,112.06x = 548,018.88 × 215,824
  4. Step 4: Simplify right side
    397,112.06x = 118,275,626,757.12
  5. Step 5: Solve for x
    x = 118,275,626,757.12/397,112.06
  6. Step 6: Final answer
    x = 297,839.42

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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.