Finding the Fourth Proportional to 188,646.09, 260,330.34 and 106,989.88
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Solution
The fourth proportional to 188,646.09, 260,330.34 and 106,989.88 is: 147,645.32
Step by Step Solution
- Step 1: Write the proportion equation
188,646.09 : 260,330.34 = 106,989.88 : x - Step 2: Convert to fraction form
188,646.09/260,330.34 = 106,989.88/x - Step 3: Cross multiply
188,646.09x = 260,330.34 × 106,989.88 - Step 4: Simplify right side
188,646.09x = 27,852,711,836.96 - Step 5: Solve for x
x = 27,852,711,836.96/188,646.09 - Step 6: Final answer
x = 147,645.32
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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.