Finding the Fourth Proportional to 213,136.44, 294,138.06 and 122,521.80
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Solution
The fourth proportional to 213,136.44, 294,138.06 and 122,521.80 is: 169,085.70
Step by Step Solution
- Step 1: Write the proportion equation
213,136.44 : 294,138.06 = 122,521.80 : x - Step 2: Convert to fraction form
213,136.44/294,138.06 = 122,521.80/x - Step 3: Cross multiply
213,136.44x = 294,138.06 × 122,521.80 - Step 4: Simplify right side
213,136.44x = 36,038,324,559.71 - Step 5: Solve for x
x = 36,038,324,559.71/213,136.44 - Step 6: Final answer
x = 169,085.70
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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.