Finding the Fourth Proportional to 201,620.70, 302,431.05 and 131,579.10
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Solution
The fourth proportional to 201,620.70, 302,431.05 and 131,579.10 is: 197,368.65
Step by Step Solution
- Step 1: Write the proportion equation
201,620.70 : 302,431.05 = 131,579.10 : x - Step 2: Convert to fraction form
201,620.70/302,431.05 = 131,579.10/x - Step 3: Cross multiply
201,620.70x = 302,431.05 × 131,579.10 - Step 4: Simplify right side
201,620.70x = 39,793,605,371.06 - Step 5: Solve for x
x = 39,793,605,371.06/201,620.70 - Step 6: Final answer
x = 197,368.65
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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.