Finding the Fourth Proportional to 371,836.68, 513,137.88 and 202,070.80
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Solution
The fourth proportional to 371,836.68, 513,137.88 and 202,070.80 is: 278,859.48
Step by Step Solution
- Step 1: Write the proportion equation
371,836.68 : 513,137.88 = 202,070.80 : x - Step 2: Convert to fraction form
371,836.68/513,137.88 = 202,070.80/x - Step 3: Cross multiply
371,836.68x = 513,137.88 × 202,070.80 - Step 4: Simplify right side
371,836.68x = 103,690,181,921.90 - Step 5: Solve for x
x = 103,690,181,921.90/371,836.68 - Step 6: Final answer
x = 278,859.48
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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.