Finding the Fourth Proportional to 212,028.60, 318,042.90 and 202,927.80
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Solution
The fourth proportional to 212,028.60, 318,042.90 and 202,927.80 is: 304,391.70
Step by Step Solution
- Step 1: Write the proportion equation
212,028.60 : 318,042.90 = 202,927.80 : x - Step 2: Convert to fraction form
212,028.60/318,042.90 = 202,927.80/x - Step 3: Cross multiply
212,028.60x = 318,042.90 × 202,927.80 - Step 4: Simplify right side
212,028.60x = 64,539,746,002.62 - Step 5: Solve for x
x = 64,539,746,002.62/212,028.60 - Step 6: Final answer
x = 304,391.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.