Finding the Fourth Proportional to 289,179.75, 399,072.99 and 158,368.91
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Solution
The fourth proportional to 289,179.75, 399,072.99 and 158,368.91 is: 218,551.79
Step by Step Solution
- Step 1: Write the proportion equation
289,179.75 : 399,072.99 = 158,368.91 : x - Step 2: Convert to fraction form
289,179.75/399,072.99 = 158,368.91/x - Step 3: Cross multiply
289,179.75x = 399,072.99 × 158,368.91 - Step 4: Simplify right side
289,179.75x = 63,200,753,035.26 - Step 5: Solve for x
x = 63,200,753,035.26/289,179.75 - Step 6: Final answer
x = 218,551.79
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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.