Finding the Fourth Proportional to 289,230.23, 433,743.73 and 86,765.97
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Solution
The fourth proportional to 289,230.23, 433,743.73 and 86,765.97 is: 130,118.47
Step by Step Solution
- Step 1: Write the proportion equation
289,230.23 : 433,743.73 = 86,765.97 : x - Step 2: Convert to fraction form
289,230.23/433,743.73 = 86,765.97/x - Step 3: Cross multiply
289,230.23x = 433,743.73 × 86,765.97 - Step 4: Simplify right side
289,230.23x = 37,634,195,464.87 - Step 5: Solve for x
x = 37,634,195,464.87/289,230.23 - Step 6: Final answer
x = 130,118.47
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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.