Finding the Fourth Proportional to 371,898.09, 513,222.75 and 202,132.62
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Solution
The fourth proportional to 371,898.09, 513,222.75 and 202,132.62 is: 278,944.86
Step by Step Solution
- Step 1: Write the proportion equation
371,898.09 : 513,222.75 = 202,132.62 : x - Step 2: Convert to fraction form
371,898.09/513,222.75 = 202,132.62/x - Step 3: Cross multiply
371,898.09x = 513,222.75 × 202,132.62 - Step 4: Simplify right side
371,898.09x = 103,739,059,101.11 - Step 5: Solve for x
x = 103,739,059,101.11/371,898.09 - Step 6: Final answer
x = 278,944.86
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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.