Finding the Fourth Proportional to 216,639.75, 298,957.26 and 119,841.09
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Solution
The fourth proportional to 216,639.75, 298,957.26 and 119,841.09 is: 165,377.61
Step by Step Solution
- Step 1: Write the proportion equation
216,639.75 : 298,957.26 = 119,841.09 : x - Step 2: Convert to fraction form
216,639.75/298,957.26 = 119,841.09/x - Step 3: Cross multiply
216,639.75x = 298,957.26 × 119,841.09 - Step 4: Simplify right side
216,639.75x = 35,827,363,901.81 - Step 5: Solve for x
x = 35,827,363,901.81/216,639.75 - Step 6: Final answer
x = 165,377.61
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1.5x scale
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.