Finding the Fourth Proportional to 247,990.40, 341,905.53 and 160,620.05
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Solution
The fourth proportional to 247,990.40, 341,905.53 and 160,620.05 is: 221,447.62
Step by Step Solution
- Step 1: Write the proportion equation
247,990.40 : 341,905.53 = 160,620.05 : x - Step 2: Convert to fraction form
247,990.40/341,905.53 = 160,620.05/x - Step 3: Cross multiply
247,990.40x = 341,905.53 × 160,620.05 - Step 4: Simplify right side
247,990.40x = 54,916,884,178.64 - Step 5: Solve for x
x = 54,916,884,178.64/247,990.40 - Step 6: Final answer
x = 221,447.62
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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.