Finding the Fourth Proportional to 225,816.05, 311,639.93 and 130,328.88
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Solution
The fourth proportional to 225,816.05, 311,639.93 and 130,328.88 is: 179,861.81
Step by Step Solution
- Step 1: Write the proportion equation
225,816.05 : 311,639.93 = 130,328.88 : x - Step 2: Convert to fraction form
225,816.05/311,639.93 = 130,328.88/x - Step 3: Cross multiply
225,816.05x = 311,639.93 × 130,328.88 - Step 4: Simplify right side
225,816.05x = 40,615,683,040.18 - Step 5: Solve for x
x = 40,615,683,040.18/225,816.05 - Step 6: Final answer
x = 179,861.81
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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.