Finding the Fourth Proportional to 217,114.80, 325,729.80 and 76,858.80
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Solution
The fourth proportional to 217,114.80, 325,729.80 and 76,858.80 is: 115,308.59
Step by Step Solution
- Step 1: Write the proportion equation
217,114.80 : 325,729.80 = 76,858.80 : x - Step 2: Convert to fraction form
217,114.80/325,729.80 = 76,858.80/x - Step 3: Cross multiply
217,114.80x = 325,729.80 × 76,858.80 - Step 4: Simplify right side
217,114.80x = 25,035,201,552.24 - Step 5: Solve for x
x = 25,035,201,552.24/217,114.80 - Step 6: Final answer
x = 115,308.59
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1.5x scale
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.