Finding the Fourth Proportional to 220,828.10, 304,640.88 and 130,122.14
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Solution
The fourth proportional to 220,828.10, 304,640.88 and 130,122.14 is: 179,508.51
Step by Step Solution
- Step 1: Write the proportion equation
220,828.10 : 304,640.88 = 130,122.14 : x - Step 2: Convert to fraction form
220,828.10/304,640.88 = 130,122.14/x - Step 3: Cross multiply
220,828.10x = 304,640.88 × 130,122.14 - Step 4: Simplify right side
220,828.10x = 39,640,523,237.08 - Step 5: Solve for x
x = 39,640,523,237.08/220,828.10 - Step 6: Final answer
x = 179,508.51
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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.