Finding the Fourth Proportional to 201,387.20, 277,845.12 and 124,878.80
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Solution
The fourth proportional to 201,387.20, 277,845.12 and 124,878.80 is: 172,289.82
Step by Step Solution
- Step 1: Write the proportion equation
201,387.20 : 277,845.12 = 124,878.80 : x - Step 2: Convert to fraction form
201,387.20/277,845.12 = 124,878.80/x - Step 3: Cross multiply
201,387.20x = 277,845.12 × 124,878.80 - Step 4: Simplify right side
201,387.20x = 34,696,965,171.46 - Step 5: Solve for x
x = 34,696,965,171.46/201,387.20 - Step 6: Final answer
x = 172,289.82
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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.