Finding the Fourth Proportional to 285,649.14, 393,991.11 and 188,740.74
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Solution
The fourth proportional to 285,649.14, 393,991.11 and 188,740.74 is: 260,326.96
Step by Step Solution
- Step 1: Write the proportion equation
285,649.14 : 393,991.11 = 188,740.74 : x - Step 2: Convert to fraction form
285,649.14/393,991.11 = 188,740.74/x - Step 3: Cross multiply
285,649.14x = 393,991.11 × 188,740.74 - Step 4: Simplify right side
285,649.14x = 74,362,173,654.82 - Step 5: Solve for x
x = 74,362,173,654.82/285,649.14 - Step 6: Final answer
x = 260,326.96
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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.