Finding the Fourth Proportional to 220,961.52, 304,916.40 and 125,455.68
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Solution
The fourth proportional to 220,961.52, 304,916.40 and 125,455.68 is: 173,122.88
Step by Step Solution
- Step 1: Write the proportion equation
220,961.52 : 304,916.40 = 125,455.68 : x - Step 2: Convert to fraction form
220,961.52/304,916.40 = 125,455.68/x - Step 3: Cross multiply
220,961.52x = 304,916.40 × 125,455.68 - Step 4: Simplify right side
220,961.52x = 38,253,494,305.15 - Step 5: Solve for x
x = 38,253,494,305.15/220,961.52 - Step 6: Final answer
x = 173,122.88
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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.