Finding the Fourth Proportional to 201,385.20, 277,842.36 and 124,876.80
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Solution
The fourth proportional to 201,385.20, 277,842.36 and 124,876.80 is: 172,287.06
Step by Step Solution
- Step 1: Write the proportion equation
201,385.20 : 277,842.36 = 124,876.80 : x - Step 2: Convert to fraction form
201,385.20/277,842.36 = 124,876.80/x - Step 3: Cross multiply
201,385.20x = 277,842.36 × 124,876.80 - Step 4: Simplify right side
201,385.20x = 34,696,064,821.25 - Step 5: Solve for x
x = 34,696,064,821.25/201,385.20 - Step 6: Final answer
x = 172,287.06
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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.