Finding the Fourth Proportional to 207,143.14, 310,664.21 and 57,379.54
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Solution
The fourth proportional to 207,143.14, 310,664.21 and 57,379.54 is: 86,055.32
Step by Step Solution
- Step 1: Write the proportion equation
207,143.14 : 310,664.21 = 57,379.54 : x - Step 2: Convert to fraction form
207,143.14/310,664.21 = 57,379.54/x - Step 3: Cross multiply
207,143.14x = 310,664.21 × 57,379.54 - Step 4: Simplify right side
207,143.14x = 17,825,769,464.26 - Step 5: Solve for x
x = 17,825,769,464.26/207,143.14 - Step 6: Final answer
x = 86,055.32
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.