Finding the Fourth Proportional to 318,112.25, 477,155.93 and 107,750.19
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Solution
The fourth proportional to 318,112.25, 477,155.93 and 107,750.19 is: 161,621.07
Step by Step Solution
- Step 1: Write the proportion equation
318,112.25 : 477,155.93 = 107,750.19 : x - Step 2: Convert to fraction form
318,112.25/477,155.93 = 107,750.19/x - Step 3: Cross multiply
318,112.25x = 477,155.93 × 107,750.19 - Step 4: Simplify right side
318,112.25x = 51,413,641,578.38 - Step 5: Solve for x
x = 51,413,641,578.38/318,112.25 - Step 6: Final answer
x = 161,621.07
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.