Finding the Fourth Proportional to 221,882.60, 306,174.12 and 131,241.80
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Solution
The fourth proportional to 221,882.60, 306,174.12 and 131,241.80 is: 181,099.57
Step by Step Solution
- Step 1: Write the proportion equation
221,882.60 : 306,174.12 = 131,241.80 : x - Step 2: Convert to fraction form
221,882.60/306,174.12 = 131,241.80/x - Step 3: Cross multiply
221,882.60x = 306,174.12 × 131,241.80 - Step 4: Simplify right side
221,882.60x = 40,182,842,622.22 - Step 5: Solve for x
x = 40,182,842,622.22/221,882.60 - Step 6: Final answer
x = 181,099.57
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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.