Finding the Fourth Proportional to 221,351.91, 305,480.07 and 125,867.49
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Solution
The fourth proportional to 221,351.91, 305,480.07 and 125,867.49 is: 173,705.34
Step by Step Solution
- Step 1: Write the proportion equation
221,351.91 : 305,480.07 = 125,867.49 : x - Step 2: Convert to fraction form
221,351.91/305,480.07 = 125,867.49/x - Step 3: Cross multiply
221,351.91x = 305,480.07 × 125,867.49 - Step 4: Simplify right side
221,351.91x = 38,450,009,655.92 - Step 5: Solve for x
x = 38,450,009,655.92/221,351.91 - Step 6: Final answer
x = 173,705.34
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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.