Finding the Fourth Proportional to 157,649.40, 236,474.10 and 155,575.80
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Solution
The fourth proportional to 157,649.40, 236,474.10 and 155,575.80 is: 233,363.70
Step by Step Solution
- Step 1: Write the proportion equation
157,649.40 : 236,474.10 = 155,575.80 : x - Step 2: Convert to fraction form
157,649.40/236,474.10 = 155,575.80/x - Step 3: Cross multiply
157,649.40x = 236,474.10 × 155,575.80 - Step 4: Simplify right side
157,649.40x = 36,789,647,286.78 - Step 5: Solve for x
x = 36,789,647,286.78/157,649.40 - Step 6: Final answer
x = 233,363.70
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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.