Finding the Fourth Proportional to 189,106.40, 260,893.68 and 108,504.80
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Solution
The fourth proportional to 189,106.40, 260,893.68 and 108,504.80 is: 149,694.65
Step by Step Solution
- Step 1: Write the proportion equation
189,106.40 : 260,893.68 = 108,504.80 : x - Step 2: Convert to fraction form
189,106.40/260,893.68 = 108,504.80/x - Step 3: Cross multiply
189,106.40x = 260,893.68 × 108,504.80 - Step 4: Simplify right side
189,106.40x = 28,308,216,569.66 - Step 5: Solve for x
x = 28,308,216,569.66/189,106.40 - Step 6: Final answer
x = 149,694.65
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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.