Finding the Fourth Proportional to 221,758.92, 306,028.26 and 121,159.08
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Solution
The fourth proportional to 221,758.92, 306,028.26 and 121,159.08 is: 167,200.05
Step by Step Solution
- Step 1: Write the proportion equation
221,758.92 : 306,028.26 = 121,159.08 : x - Step 2: Convert to fraction form
221,758.92/306,028.26 = 121,159.08/x - Step 3: Cross multiply
221,758.92x = 306,028.26 × 121,159.08 - Step 4: Simplify right side
221,758.92x = 37,078,102,435.60 - Step 5: Solve for x
x = 37,078,102,435.60/221,758.92 - Step 6: Final answer
x = 167,200.05
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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.