Finding the Fourth Proportional to 221,157.40, 305,197.74 and 125,695.80
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Solution
The fourth proportional to 221,157.40, 305,197.74 and 125,695.80 is: 173,460.50
Step by Step Solution
- Step 1: Write the proportion equation
221,157.40 : 305,197.74 = 125,695.80 : x - Step 2: Convert to fraction form
221,157.40/305,197.74 = 125,695.80/x - Step 3: Cross multiply
221,157.40x = 305,197.74 × 125,695.80 - Step 4: Simplify right side
221,157.40x = 38,362,074,087.49 - Step 5: Solve for x
x = 38,362,074,087.49/221,157.40 - Step 6: Final answer
x = 173,460.50
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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.