Finding the Fourth Proportional to 213,142.27, 294,136.35 and 117,648.99
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Solution
The fourth proportional to 213,142.27, 294,136.35 and 117,648.99 is: 162,355.62
Step by Step Solution
- Step 1: Write the proportion equation
213,142.27 : 294,136.35 = 117,648.99 : x - Step 2: Convert to fraction form
213,142.27/294,136.35 = 117,648.99/x - Step 3: Cross multiply
213,142.27x = 294,136.35 × 117,648.99 - Step 4: Simplify right side
213,142.27x = 34,604,844,499.79 - Step 5: Solve for x
x = 34,604,844,499.79/213,142.27 - Step 6: Final answer
x = 162,355.62
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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.