Finding the Fourth Proportional to 371,844.12, 513,148.14 and 202,078.28
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Solution
The fourth proportional to 371,844.12, 513,148.14 and 202,078.28 is: 278,869.80
Step by Step Solution
- Step 1: Write the proportion equation
371,844.12 : 513,148.14 = 202,078.28 : x - Step 2: Convert to fraction form
371,844.12/513,148.14 = 202,078.28/x - Step 3: Cross multiply
371,844.12x = 513,148.14 × 202,078.28 - Step 4: Simplify right side
371,844.12x = 103,696,093,516.40 - Step 5: Solve for x
x = 103,696,093,516.40/371,844.12 - Step 6: Final answer
x = 278,869.80
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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.