Finding the Fourth Proportional to 387,621.99, 534,960.97 and 222,065.69
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Solution
The fourth proportional to 387,621.99, 534,960.97 and 222,065.69 is: 306,475.07
Step by Step Solution
- Step 1: Write the proportion equation
387,621.99 : 534,960.97 = 222,065.69 : x - Step 2: Convert to fraction form
387,621.99/534,960.97 = 222,065.69/x - Step 3: Cross multiply
387,621.99x = 534,960.97 × 222,065.69 - Step 4: Simplify right side
387,621.99x = 118,796,476,926.12 - Step 5: Solve for x
x = 118,796,476,926.12/387,621.99 - Step 6: Final answer
x = 306,475.07
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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.