Finding the Fourth Proportional to 212,649.32, 293,456.79 and 117,155.79
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Solution
The fourth proportional to 212,649.32, 293,456.79 and 117,155.79 is: 161,675.39
Step by Step Solution
- Step 1: Write the proportion equation
212,649.32 : 293,456.79 = 117,155.79 : x - Step 2: Convert to fraction form
212,649.32/293,456.79 = 117,155.79/x - Step 3: Cross multiply
212,649.32x = 293,456.79 × 117,155.79 - Step 4: Simplify right side
212,649.32x = 34,380,162,063.31 - Step 5: Solve for x
x = 34,380,162,063.31/212,649.32 - Step 6: Final answer
x = 161,675.39
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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.