Finding the Fourth Proportional to 212,318.82, 292,903.41 and 126,228.96
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Solution
The fourth proportional to 212,318.82, 292,903.41 and 126,228.96 is: 174,138.56
Step by Step Solution
- Step 1: Write the proportion equation
212,318.82 : 292,903.41 = 126,228.96 : x - Step 2: Convert to fraction form
212,318.82/292,903.41 = 126,228.96/x - Step 3: Cross multiply
212,318.82x = 292,903.41 × 126,228.96 - Step 4: Simplify right side
212,318.82x = 36,972,892,957.31 - Step 5: Solve for x
x = 36,972,892,957.31/212,318.82 - Step 6: Final answer
x = 174,138.56
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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.