Finding the Fourth Proportional to 188,548.38, 260,195.96 and 103,663.62
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Solution
The fourth proportional to 188,548.38, 260,195.96 and 103,663.62 is: 143,055.35
Step by Step Solution
- Step 1: Write the proportion equation
188,548.38 : 260,195.96 = 103,663.62 : x - Step 2: Convert to fraction form
188,548.38/260,195.96 = 103,663.62/x - Step 3: Cross multiply
188,548.38x = 260,195.96 × 103,663.62 - Step 4: Simplify right side
188,548.38x = 26,972,855,382.13 - Step 5: Solve for x
x = 26,972,855,382.13/188,548.38 - Step 6: Final answer
x = 143,055.35
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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.