Finding the Fourth Proportional to 198,128.76, 273,511.80 and 125,567.88
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Solution
The fourth proportional to 198,128.76, 273,511.80 and 125,567.88 is: 173,343.32
Step by Step Solution
- Step 1: Write the proportion equation
198,128.76 : 273,511.80 = 125,567.88 : x - Step 2: Convert to fraction form
198,128.76/273,511.80 = 125,567.88/x - Step 3: Cross multiply
198,128.76x = 273,511.80 × 125,567.88 - Step 4: Simplify right side
198,128.76x = 34,344,296,880.98 - Step 5: Solve for x
x = 34,344,296,880.98/198,128.76 - Step 6: Final answer
x = 173,343.32
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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.