Finding the Fourth Proportional to 371,886.57, 513,201.66 and 202,120.70
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Solution
The fourth proportional to 371,886.57, 513,201.66 and 202,120.70 is: 278,925.58
Step by Step Solution
- Step 1: Write the proportion equation
371,886.57 : 513,201.66 = 202,120.70 : x - Step 2: Convert to fraction form
371,886.57/513,201.66 = 202,120.70/x - Step 3: Cross multiply
371,886.57x = 513,201.66 × 202,120.70 - Step 4: Simplify right side
371,886.57x = 103,728,676,194.35 - Step 5: Solve for x
x = 103,728,676,194.35/371,886.57 - Step 6: Final answer
x = 278,925.58
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1.5x scale
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.