Finding the Fourth Proportional to 221,891.04, 306,231.06 and 131,276.14
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Solution
The fourth proportional to 221,891.04, 306,231.06 and 131,276.14 is: 181,173.75
Step by Step Solution
- Step 1: Write the proportion equation
221,891.04 : 306,231.06 = 131,276.14 : x - Step 2: Convert to fraction form
221,891.04/306,231.06 = 131,276.14/x - Step 3: Cross multiply
221,891.04x = 306,231.06 × 131,276.14 - Step 4: Simplify right side
221,891.04x = 40,200,831,231.62 - Step 5: Solve for x
x = 40,200,831,231.62/221,891.04 - Step 6: Final answer
x = 181,173.75
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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.