Finding the Fourth Proportional to 221,201.22, 305,257.14 and 125,707.80
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Solution
The fourth proportional to 221,201.22, 305,257.14 and 125,707.80 is: 173,476.46
Step by Step Solution
- Step 1: Write the proportion equation
221,201.22 : 305,257.14 = 125,707.80 : x - Step 2: Convert to fraction form
221,201.22/305,257.14 = 125,707.80/x - Step 3: Cross multiply
221,201.22x = 305,257.14 × 125,707.80 - Step 4: Simplify right side
221,201.22x = 38,373,203,503.69 - Step 5: Solve for x
x = 38,373,203,503.69/221,201.22 - Step 6: Final answer
x = 173,476.46
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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.