Finding the Fourth Proportional to 225,686.36, 311,657.86 and 145,253.97
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Solution
The fourth proportional to 225,686.36, 311,657.86 and 145,253.97 is: 200,586.07
Step by Step Solution
- Step 1: Write the proportion equation
225,686.36 : 311,657.86 = 145,253.97 : x - Step 2: Convert to fraction form
225,686.36/311,657.86 = 145,253.97/x - Step 3: Cross multiply
225,686.36x = 311,657.86 × 145,253.97 - Step 4: Simplify right side
225,686.36x = 45,269,541,628.27 - Step 5: Solve for x
x = 45,269,541,628.27/225,686.36 - Step 6: Final answer
x = 200,586.07
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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.