Finding the Fourth Proportional to 221,795.68, 306,078.32 and 121,194.08
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Solution
The fourth proportional to 221,795.68, 306,078.32 and 121,194.08 is: 167,247.98
Step by Step Solution
- Step 1: Write the proportion equation
221,795.68 : 306,078.32 = 121,194.08 : x - Step 2: Convert to fraction form
221,795.68/306,078.32 = 121,194.08/x - Step 3: Cross multiply
221,795.68x = 306,078.32 × 121,194.08 - Step 4: Simplify right side
221,795.68x = 37,094,880,400.35 - Step 5: Solve for x
x = 37,094,880,400.35/221,795.68 - Step 6: Final answer
x = 167,247.98
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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.