Finding the Fourth Proportional to 198,813.71, 274,258.35 and 118,183.88
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Solution
The fourth proportional to 198,813.71, 274,258.35 and 118,183.88 is: 163,031.59
Step by Step Solution
- Step 1: Write the proportion equation
198,813.71 : 274,258.35 = 118,183.88 : x - Step 2: Convert to fraction form
198,813.71/274,258.35 = 118,183.88/x - Step 3: Cross multiply
198,813.71x = 274,258.35 × 118,183.88 - Step 4: Simplify right side
198,813.71x = 32,412,914,554.11 - Step 5: Solve for x
x = 32,412,914,554.11/198,813.71 - Step 6: Final answer
x = 163,031.59
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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.