Finding the Fourth Proportional to 203,489.36, 280,491.76 and 160,398.98
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Solution
The fourth proportional to 203,489.36, 280,491.76 and 160,398.98 is: 221,095.55
Step by Step Solution
- Step 1: Write the proportion equation
203,489.36 : 280,491.76 = 160,398.98 : x - Step 2: Convert to fraction form
203,489.36/280,491.76 = 160,398.98/x - Step 3: Cross multiply
203,489.36x = 280,491.76 × 160,398.98 - Step 4: Simplify right side
203,489.36x = 44,990,592,202.40 - Step 5: Solve for x
x = 44,990,592,202.40/203,489.36 - Step 6: Final answer
x = 221,095.55
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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.