Finding the Fourth Proportional to 228,468.25, 315,277.68 and 126,491.68
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Solution
The fourth proportional to 228,468.25, 315,277.68 and 126,491.68 is: 174,553.81
Step by Step Solution
- Step 1: Write the proportion equation
228,468.25 : 315,277.68 = 126,491.68 : x - Step 2: Convert to fraction form
228,468.25/315,277.68 = 126,491.68/x - Step 3: Cross multiply
228,468.25x = 315,277.68 × 126,491.68 - Step 4: Simplify right side
228,468.25x = 39,880,003,409.70 - Step 5: Solve for x
x = 39,880,003,409.70/228,468.25 - Step 6: Final answer
x = 174,553.81
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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.