Finding the Fourth Proportional to 289,079.64, 433,511.73 and 99,486.99
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Solution
The fourth proportional to 289,079.64, 433,511.73 and 99,486.99 is: 149,193.41
Step by Step Solution
- Step 1: Write the proportion equation
289,079.64 : 433,511.73 = 99,486.99 : x - Step 2: Convert to fraction form
289,079.64/433,511.73 = 99,486.99/x - Step 3: Cross multiply
289,079.64x = 433,511.73 × 99,486.99 - Step 4: Simplify right side
289,079.64x = 43,128,777,147.39 - Step 5: Solve for x
x = 43,128,777,147.39/289,079.64 - Step 6: Final answer
x = 149,193.41
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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.