Finding the Fourth Proportional to 289,774.94, 399,899.79 and 168,896.75
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Solution
The fourth proportional to 289,774.94, 399,899.79 and 168,896.75 is: 233,083.56
Step by Step Solution
- Step 1: Write the proportion equation
289,774.94 : 399,899.79 = 168,896.75 : x - Step 2: Convert to fraction form
289,774.94/399,899.79 = 168,896.75/x - Step 3: Cross multiply
289,774.94x = 399,899.79 × 168,896.75 - Step 4: Simplify right side
289,774.94x = 67,541,772,857.18 - Step 5: Solve for x
x = 67,541,772,857.18/289,774.94 - Step 6: Final answer
x = 233,083.56
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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.