Finding the Fourth Proportional to 225,749.94, 311,302.44 and 157,742.13
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Solution
The fourth proportional to 225,749.94, 311,302.44 and 157,742.13 is: 217,521.71
Step by Step Solution
- Step 1: Write the proportion equation
225,749.94 : 311,302.44 = 157,742.13 : x - Step 2: Convert to fraction form
225,749.94/311,302.44 = 157,742.13/x - Step 3: Cross multiply
225,749.94x = 311,302.44 × 157,742.13 - Step 4: Simplify right side
225,749.94x = 49,105,511,127.18 - Step 5: Solve for x
x = 49,105,511,127.18/225,749.94 - Step 6: Final answer
x = 217,521.71
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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.