Finding the Fourth Proportional to 198,087.76, 273,358.80 and 107,442.10
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Solution
The fourth proportional to 198,087.76, 273,358.80 and 107,442.10 is: 148,268.85
Step by Step Solution
- Step 1: Write the proportion equation
198,087.76 : 273,358.80 = 107,442.10 : x - Step 2: Convert to fraction form
198,087.76/273,358.80 = 107,442.10/x - Step 3: Cross multiply
198,087.76x = 273,358.80 × 107,442.10 - Step 4: Simplify right side
198,087.76x = 29,370,243,525.48 - Step 5: Solve for x
x = 29,370,243,525.48/198,087.76 - Step 6: Final answer
x = 148,268.85
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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.