Finding the Fourth Proportional to 312,368.38, 468,548.37 and 75,713.11
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Solution
The fourth proportional to 312,368.38, 468,548.37 and 75,713.11 is: 113,568.65
Step by Step Solution
- Step 1: Write the proportion equation
312,368.38 : 468,548.37 = 75,713.11 : x - Step 2: Convert to fraction form
312,368.38/468,548.37 = 75,713.11/x - Step 3: Cross multiply
312,368.38x = 468,548.37 × 75,713.11 - Step 4: Simplify right side
312,368.38x = 35,475,254,278.13 - Step 5: Solve for x
x = 35,475,254,278.13/312,368.38 - Step 6: Final answer
x = 113,568.65
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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.