Finding the Fourth Proportional to 207,142.14, 310,662.71 and 57,378.54
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Solution
The fourth proportional to 207,142.14, 310,662.71 and 57,378.54 is: 86,053.82
Step by Step Solution
- Step 1: Write the proportion equation
207,142.14 : 310,662.71 = 57,378.54 : x - Step 2: Convert to fraction form
207,142.14/310,662.71 = 57,378.54/x - Step 3: Cross multiply
207,142.14x = 310,662.71 × 57,378.54 - Step 4: Simplify right side
207,142.14x = 17,825,371,322.38 - Step 5: Solve for x
x = 17,825,371,322.38/207,142.14 - Step 6: Final answer
x = 86,053.82
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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.