Finding the Fourth Proportional to 201,817.80, 302,726.70 and 139,609.80
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Solution
The fourth proportional to 201,817.80, 302,726.70 and 139,609.80 is: 209,414.70
Step by Step Solution
- Step 1: Write the proportion equation
201,817.80 : 302,726.70 = 139,609.80 : x - Step 2: Convert to fraction form
201,817.80/302,726.70 = 139,609.80/x - Step 3: Cross multiply
201,817.80x = 302,726.70 × 139,609.80 - Step 4: Simplify right side
201,817.80x = 42,263,614,041.66 - Step 5: Solve for x
x = 42,263,614,041.66/201,817.80 - Step 6: Final answer
x = 209,414.70
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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.