Finding the Fourth Proportional to 221,794.92, 306,077.94 and 121,195.08
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Solution
The fourth proportional to 221,794.92, 306,077.94 and 121,195.08 is: 167,249.73
Step by Step Solution
- Step 1: Write the proportion equation
221,794.92 : 306,077.94 = 121,195.08 : x - Step 2: Convert to fraction form
221,794.92/306,077.94 = 121,195.08/x - Step 3: Cross multiply
221,794.92x = 306,077.94 × 121,195.08 - Step 4: Simplify right side
221,794.92x = 37,095,140,424.54 - Step 5: Solve for x
x = 37,095,140,424.54/221,794.92 - Step 6: Final answer
x = 167,249.73
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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.