Finding the Fourth Proportional to 216,408.20, 324,612.30 and 213,297.80
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Solution
The fourth proportional to 216,408.20, 324,612.30 and 213,297.80 is: 319,946.70
Step by Step Solution
- Step 1: Write the proportion equation
216,408.20 : 324,612.30 = 213,297.80 : x - Step 2: Convert to fraction form
216,408.20/324,612.30 = 213,297.80/x - Step 3: Cross multiply
216,408.20x = 324,612.30 × 213,297.80 - Step 4: Simplify right side
216,408.20x = 69,239,089,442.94 - Step 5: Solve for x
x = 69,239,089,442.94/216,408.20 - Step 6: Final answer
x = 319,946.70
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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.