Finding the Fourth Proportional to 217,612.20, 326,418.30 and 201,865.80
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Solution
The fourth proportional to 217,612.20, 326,418.30 and 201,865.80 is: 302,798.70
Step by Step Solution
- Step 1: Write the proportion equation
217,612.20 : 326,418.30 = 201,865.80 : x - Step 2: Convert to fraction form
217,612.20/326,418.30 = 201,865.80/x - Step 3: Cross multiply
217,612.20x = 326,418.30 × 201,865.80 - Step 4: Simplify right side
217,612.20x = 65,892,691,264.14 - Step 5: Solve for x
x = 65,892,691,264.14/217,612.20 - Step 6: Final answer
x = 302,798.70
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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.