Finding the Fourth Proportional to 371,900.60, 513,226.20 and 202,135.12
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Solution
The fourth proportional to 371,900.60, 513,226.20 and 202,135.12 is: 278,948.30
Step by Step Solution
- Step 1: Write the proportion equation
371,900.60 : 513,226.20 = 202,135.12 : x - Step 2: Convert to fraction form
371,900.60/513,226.20 = 202,135.12/x - Step 3: Cross multiply
371,900.60x = 513,226.20 × 202,135.12 - Step 4: Simplify right side
371,900.60x = 103,741,039,524.14 - Step 5: Solve for x
x = 103,741,039,524.14/371,900.60 - Step 6: Final answer
x = 278,948.30
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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.