Finding the Fourth Proportional to 371,721.84, 512,974.80 and 201,954.48
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Solution
The fourth proportional to 371,721.84, 512,974.80 and 201,954.48 is: 278,696.45
Step by Step Solution
- Step 1: Write the proportion equation
371,721.84 : 512,974.80 = 201,954.48 : x - Step 2: Convert to fraction form
371,721.84/512,974.80 = 201,954.48/x - Step 3: Cross multiply
371,721.84x = 512,974.80 × 201,954.48 - Step 4: Simplify right side
371,721.84x = 103,597,558,987.10 - Step 5: Solve for x
x = 103,597,558,987.10/371,721.84 - Step 6: Final answer
x = 278,696.45
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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.