Finding the Fourth Proportional to 201,869.70, 302,221.35 and 123,137.70
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Solution
The fourth proportional to 201,869.70, 302,221.35 and 123,137.70 is: 184,350.81
Step by Step Solution
- Step 1: Write the proportion equation
201,869.70 : 302,221.35 = 123,137.70 : x - Step 2: Convert to fraction form
201,869.70/302,221.35 = 123,137.70/x - Step 3: Cross multiply
201,869.70x = 302,221.35 × 123,137.70 - Step 4: Simplify right side
201,869.70x = 37,214,841,929.90 - Step 5: Solve for x
x = 37,214,841,929.90/201,869.70 - Step 6: Final answer
x = 184,350.81
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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.