Finding the Fourth Proportional to 198,415.08, 273,815.16 and 107,772.12
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Solution
The fourth proportional to 198,415.08, 273,815.16 and 107,772.12 is: 148,726.80
Step by Step Solution
- Step 1: Write the proportion equation
198,415.08 : 273,815.16 = 107,772.12 : x - Step 2: Convert to fraction form
198,415.08/273,815.16 = 107,772.12/x - Step 3: Cross multiply
198,415.08x = 273,815.16 × 107,772.12 - Step 4: Simplify right side
198,415.08x = 29,509,640,281.34 - Step 5: Solve for x
x = 29,509,640,281.34/198,415.08 - Step 6: Final answer
x = 148,726.80
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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.