Finding the Fourth Proportional to 289,294.47, 434,010.99 and 120,721.02
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Solution
The fourth proportional to 289,294.47, 434,010.99 and 120,721.02 is: 181,110.44
Step by Step Solution
- Step 1: Write the proportion equation
289,294.47 : 434,010.99 = 120,721.02 : x - Step 2: Convert to fraction form
289,294.47/434,010.99 = 120,721.02/x - Step 3: Cross multiply
289,294.47x = 434,010.99 × 120,721.02 - Step 4: Simplify right side
289,294.47x = 52,394,249,404.01 - Step 5: Solve for x
x = 52,394,249,404.01/289,294.47 - Step 6: Final answer
x = 181,110.44
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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.