Finding the Fourth Proportional to 221,063.40, 331,595.10 and 201,709.80
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Solution
The fourth proportional to 221,063.40, 331,595.10 and 201,709.80 is: 302,564.70
Step by Step Solution
- Step 1: Write the proportion equation
221,063.40 : 331,595.10 = 201,709.80 : x - Step 2: Convert to fraction form
221,063.40/331,595.10 = 201,709.80/x - Step 3: Cross multiply
221,063.40x = 331,595.10 × 201,709.80 - Step 4: Simplify right side
221,063.40x = 66,885,981,301.98 - Step 5: Solve for x
x = 66,885,981,301.98/221,063.40 - Step 6: Final answer
x = 302,564.70
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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.