Finding the Fourth Proportional to 197,635.95, 272,737.70 and 106,991.92
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Solution
The fourth proportional to 197,635.95, 272,737.70 and 106,991.92 is: 147,648.89
Step by Step Solution
- Step 1: Write the proportion equation
197,635.95 : 272,737.70 = 106,991.92 : x - Step 2: Convert to fraction form
197,635.95/272,737.70 = 106,991.92/x - Step 3: Cross multiply
197,635.95x = 272,737.70 × 106,991.92 - Step 4: Simplify right side
197,635.95x = 29,180,728,815.70 - Step 5: Solve for x
x = 29,180,728,815.70/197,635.95 - Step 6: Final answer
x = 147,648.89
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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.