Finding the Fourth Proportional to 371,237.71, 511,920.79 and 220,305.55
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Solution
The fourth proportional to 371,237.71, 511,920.79 and 220,305.55 is: 303,791.85
Step by Step Solution
- Step 1: Write the proportion equation
371,237.71 : 511,920.79 = 220,305.55 : x - Step 2: Convert to fraction form
371,237.71/511,920.79 = 220,305.55/x - Step 3: Cross multiply
371,237.71x = 511,920.79 × 220,305.55 - Step 4: Simplify right side
371,237.71x = 112,778,991,197.38 - Step 5: Solve for x
x = 112,778,991,197.38/371,237.71 - Step 6: Final answer
x = 303,791.85
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1.5x scale
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.