Finding the Fourth Proportional to 221,756.44, 306,023.84 and 121,154.44
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Solution
The fourth proportional to 221,756.44, 306,023.84 and 121,154.44 is: 167,193.10
Step by Step Solution
- Step 1: Write the proportion equation
221,756.44 : 306,023.84 = 121,154.44 : x - Step 2: Convert to fraction form
221,756.44/306,023.84 = 121,154.44/x - Step 3: Cross multiply
221,756.44x = 306,023.84 × 121,154.44 - Step 4: Simplify right side
221,756.44x = 37,076,146,961.85 - Step 5: Solve for x
x = 37,076,146,961.85/221,756.44 - Step 6: Final answer
x = 167,193.10
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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.