Finding the Fourth Proportional to 371,786.96, 513,069.25 and 202,021.08
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Solution
The fourth proportional to 371,786.96, 513,069.25 and 202,021.08 is: 278,790.85
Step by Step Solution
- Step 1: Write the proportion equation
371,786.96 : 513,069.25 = 202,021.08 : x - Step 2: Convert to fraction form
371,786.96/513,069.25 = 202,021.08/x - Step 3: Cross multiply
371,786.96x = 513,069.25 × 202,021.08 - Step 4: Simplify right side
371,786.96x = 103,650,803,999.79 - Step 5: Solve for x
x = 103,650,803,999.79/371,786.96 - Step 6: Final answer
x = 278,790.85
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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.