Finding the Fourth Proportional to 225,655.76, 311,546.56 and 145,223.08
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Solution
The fourth proportional to 225,655.76, 311,546.56 and 145,223.08 is: 200,498.99
Step by Step Solution
- Step 1: Write the proportion equation
225,655.76 : 311,546.56 = 145,223.08 : x - Step 2: Convert to fraction form
225,655.76/311,546.56 = 145,223.08/x - Step 3: Cross multiply
225,655.76x = 311,546.56 × 145,223.08 - Step 4: Simplify right side
225,655.76x = 45,243,751,006.60 - Step 5: Solve for x
x = 45,243,751,006.60/225,655.76 - Step 6: Final answer
x = 200,498.99
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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.