Finding the Fourth Proportional to 310,575.21, 428,591.16 and 174,609.75
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Solution
The fourth proportional to 310,575.21, 428,591.16 and 174,609.75 is: 240,959.98
Step by Step Solution
- Step 1: Write the proportion equation
310,575.21 : 428,591.16 = 174,609.75 : x - Step 2: Convert to fraction form
310,575.21/428,591.16 = 174,609.75/x - Step 3: Cross multiply
310,575.21x = 428,591.16 × 174,609.75 - Step 4: Simplify right side
310,575.21x = 74,836,195,299.81 - Step 5: Solve for x
x = 74,836,195,299.81/310,575.21 - Step 6: Final answer
x = 240,959.98
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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.