Finding the Fourth Proportional to 220,503.05, 304,257.32 and 129,877.06
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Solution
The fourth proportional to 220,503.05, 304,257.32 and 129,877.06 is: 179,208.62
Step by Step Solution
- Step 1: Write the proportion equation
220,503.05 : 304,257.32 = 129,877.06 : x - Step 2: Convert to fraction form
220,503.05/304,257.32 = 129,877.06/x - Step 3: Cross multiply
220,503.05x = 304,257.32 × 129,877.06 - Step 4: Simplify right side
220,503.05x = 39,516,045,769.13 - Step 5: Solve for x
x = 39,516,045,769.13/220,503.05 - Step 6: Final answer
x = 179,208.62
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1.5x scale
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.