Finding the Fourth Proportional to 201,785.80, 302,462.70 and 68,542.60
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Solution
The fourth proportional to 201,785.80, 302,462.70 and 68,542.60 is: 102,740.53
Step by Step Solution
- Step 1: Write the proportion equation
201,785.80 : 302,462.70 = 68,542.60 : x - Step 2: Convert to fraction form
201,785.80/302,462.70 = 68,542.60/x - Step 3: Cross multiply
201,785.80x = 302,462.70 × 68,542.60 - Step 4: Simplify right side
201,785.80x = 20,731,579,861.02 - Step 5: Solve for x
x = 20,731,579,861.02/201,785.80 - Step 6: Final answer
x = 102,740.53
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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.