Finding the Fourth Proportional to 221,243.98, 305,342.92 and 125,765.02
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Solution
The fourth proportional to 221,243.98, 305,342.92 and 125,765.02 is: 173,570.64
Step by Step Solution
- Step 1: Write the proportion equation
221,243.98 : 305,342.92 = 125,765.02 : x - Step 2: Convert to fraction form
221,243.98/305,342.92 = 125,765.02/x - Step 3: Cross multiply
221,243.98x = 305,342.92 × 125,765.02 - Step 4: Simplify right side
221,243.98x = 38,401,458,440.66 - Step 5: Solve for x
x = 38,401,458,440.66/221,243.98 - Step 6: Final answer
x = 173,570.64
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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.