Finding the Fourth Proportional to 201,649.80, 302,474.70 and 139,441.80
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Solution
The fourth proportional to 201,649.80, 302,474.70 and 139,441.80 is: 209,162.70
Step by Step Solution
- Step 1: Write the proportion equation
201,649.80 : 302,474.70 = 139,441.80 : x - Step 2: Convert to fraction form
201,649.80/302,474.70 = 139,441.80/x - Step 3: Cross multiply
201,649.80x = 302,474.70 × 139,441.80 - Step 4: Simplify right side
201,649.80x = 42,177,616,622.46 - Step 5: Solve for x
x = 42,177,616,622.46/201,649.80 - Step 6: Final answer
x = 209,162.70
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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.