Finding the Fourth Proportional to 259,528.36, 389,258.88 and 82,053.28
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Solution
The fourth proportional to 259,528.36, 389,258.88 and 82,053.28 is: 123,069.28
Step by Step Solution
- Step 1: Write the proportion equation
259,528.36 : 389,258.88 = 82,053.28 : x - Step 2: Convert to fraction form
259,528.36/389,258.88 = 82,053.28/x - Step 3: Cross multiply
259,528.36x = 389,258.88 × 82,053.28 - Step 4: Simplify right side
259,528.36x = 31,939,967,873.13 - Step 5: Solve for x
x = 31,939,967,873.13/259,528.36 - Step 6: Final answer
x = 123,069.28
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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.