Finding the Fourth Proportional to 188,574.09, 260,236.71 and 103,691.09
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Solution
The fourth proportional to 188,574.09, 260,236.71 and 103,691.09 is: 143,096.15
Step by Step Solution
- Step 1: Write the proportion equation
188,574.09 : 260,236.71 = 103,691.09 : x - Step 2: Convert to fraction form
188,574.09/260,236.71 = 103,691.09/x - Step 3: Cross multiply
188,574.09x = 260,236.71 × 103,691.09 - Step 4: Simplify right side
188,574.09x = 26,984,226,816.73 - Step 5: Solve for x
x = 26,984,226,816.73/188,574.09 - Step 6: Final answer
x = 143,096.15
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1.5x scale
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.