Finding the Fourth Proportional to 201,905.40, 302,858.10 and 68,935.80
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Solution
The fourth proportional to 201,905.40, 302,858.10 and 68,935.80 is: 103,403.70
Step by Step Solution
- Step 1: Write the proportion equation
201,905.40 : 302,858.10 = 68,935.80 : x - Step 2: Convert to fraction form
201,905.40/302,858.10 = 68,935.80/x - Step 3: Cross multiply
201,905.40x = 302,858.10 × 68,935.80 - Step 4: Simplify right side
201,905.40x = 20,877,765,409.98 - Step 5: Solve for x
x = 20,877,765,409.98/201,905.40 - Step 6: Final answer
x = 103,403.70
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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.