Finding the Fourth Proportional to 281,832.14, 388,928.36 and 154,508.63
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Solution
The fourth proportional to 281,832.14, 388,928.36 and 154,508.63 is: 213,221.91
Step by Step Solution
- Step 1: Write the proportion equation
281,832.14 : 388,928.36 = 154,508.63 : x - Step 2: Convert to fraction form
281,832.14/388,928.36 = 154,508.63/x - Step 3: Cross multiply
281,832.14x = 388,928.36 × 154,508.63 - Step 4: Simplify right side
281,832.14x = 60,092,788,071.75 - Step 5: Solve for x
x = 60,092,788,071.75/281,832.14 - Step 6: Final answer
x = 213,221.91
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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.