Finding the Fourth Proportional to 330,811.68, 456,359.76 and 196,580.64
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Solution
The fourth proportional to 330,811.68, 456,359.76 and 196,580.64 is: 271,185.99
Step by Step Solution
- Step 1: Write the proportion equation
330,811.68 : 456,359.76 = 196,580.64 : x - Step 2: Convert to fraction form
330,811.68/456,359.76 = 196,580.64/x - Step 3: Cross multiply
330,811.68x = 456,359.76 × 196,580.64 - Step 4: Simplify right side
330,811.68x = 89,711,493,691.05 - Step 5: Solve for x
x = 89,711,493,691.05/330,811.68 - Step 6: Final answer
x = 271,185.99
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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.