Finding the Fourth Proportional to 201,719.80, 302,579.70 and 189,431.80
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Solution
The fourth proportional to 201,719.80, 302,579.70 and 189,431.80 is: 284,147.70
Step by Step Solution
- Step 1: Write the proportion equation
201,719.80 : 302,579.70 = 189,431.80 : x - Step 2: Convert to fraction form
201,719.80/302,579.70 = 189,431.80/x - Step 3: Cross multiply
201,719.80x = 302,579.70 × 189,431.80 - Step 4: Simplify right side
201,719.80x = 57,318,217,214.46 - Step 5: Solve for x
x = 57,318,217,214.46/201,719.80 - Step 6: Final answer
x = 284,147.70
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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.