Finding the Fourth Proportional to 196,899.76, 271,721.68 and 107,475.76
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Solution
The fourth proportional to 196,899.76, 271,721.68 and 107,475.76 is: 148,316.55
Step by Step Solution
- Step 1: Write the proportion equation
196,899.76 : 271,721.68 = 107,475.76 : x - Step 2: Convert to fraction form
196,899.76/271,721.68 = 107,475.76/x - Step 3: Cross multiply
196,899.76x = 271,721.68 × 107,475.76 - Step 4: Simplify right side
196,899.76x = 29,203,494,066.48 - Step 5: Solve for x
x = 29,203,494,066.48/196,899.76 - Step 6: Final answer
x = 148,316.55
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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.