Finding the Fourth Proportional to 201,691.44, 278,331.48 and 112,267.44
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Solution
The fourth proportional to 201,691.44, 278,331.48 and 112,267.44 is: 154,927.56
Step by Step Solution
- Step 1: Write the proportion equation
201,691.44 : 278,331.48 = 112,267.44 : x - Step 2: Convert to fraction form
201,691.44/278,331.48 = 112,267.44/x - Step 3: Cross multiply
201,691.44x = 278,331.48 × 112,267.44 - Step 4: Simplify right side
201,691.44x = 31,247,562,731.01 - Step 5: Solve for x
x = 31,247,562,731.01/201,691.44 - Step 6: Final answer
x = 154,927.56
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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.