Finding the Fourth Proportional to 209,129.14, 288,597.21 and 118,484.91
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Solution
The fourth proportional to 209,129.14, 288,597.21 and 118,484.91 is: 163,508.61
Step by Step Solution
- Step 1: Write the proportion equation
209,129.14 : 288,597.21 = 118,484.91 : x - Step 2: Convert to fraction form
209,129.14/288,597.21 = 118,484.91/x - Step 3: Cross multiply
209,129.14x = 288,597.21 × 118,484.91 - Step 4: Simplify right side
209,129.14x = 34,194,414,453.10 - Step 5: Solve for x
x = 34,194,414,453.10/209,129.14 - Step 6: Final answer
x = 163,508.61
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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.