Finding the Fourth Proportional to 379,757.99, 524,055.66 and 209,986.31
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Solution
The fourth proportional to 379,757.99, 524,055.66 and 209,986.31 is: 289,775.38
Step by Step Solution
- Step 1: Write the proportion equation
379,757.99 : 524,055.66 = 209,986.31 : x - Step 2: Convert to fraction form
379,757.99/524,055.66 = 209,986.31/x - Step 3: Cross multiply
379,757.99x = 524,055.66 × 209,986.31 - Step 4: Simplify right side
379,757.99x = 110,044,515,588.15 - Step 5: Solve for x
x = 110,044,515,588.15/379,757.99 - Step 6: Final answer
x = 289,775.38
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.