Finding the Fourth Proportional to 371,963.40, 513,314.60 and 202,201.17
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Solution
The fourth proportional to 371,963.40, 513,314.60 and 202,201.17 is: 279,040.39
Step by Step Solution
- Step 1: Write the proportion equation
371,963.40 : 513,314.60 = 202,201.17 : x - Step 2: Convert to fraction form
371,963.40/513,314.60 = 202,201.17/x - Step 3: Cross multiply
371,963.40x = 513,314.60 × 202,201.17 - Step 4: Simplify right side
371,963.40x = 103,792,811,687.08 - Step 5: Solve for x
x = 103,792,811,687.08/371,963.40 - Step 6: Final answer
x = 279,040.39
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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.