Finding the Fourth Proportional to 306,921.58, 423,617.14 and 206,261.26
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Solution
The fourth proportional to 306,921.58, 423,617.14 and 206,261.26 is: 284,684.46
Step by Step Solution
- Step 1: Write the proportion equation
306,921.58 : 423,617.14 = 206,261.26 : x - Step 2: Convert to fraction form
306,921.58/423,617.14 = 206,261.26/x - Step 3: Cross multiply
306,921.58x = 423,617.14 × 206,261.26 - Step 4: Simplify right side
306,921.58x = 87,375,805,054.00 - Step 5: Solve for x
x = 87,375,805,054.00/306,921.58 - Step 6: Final answer
x = 284,684.46
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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.