Finding the Fourth Proportional to 245,342.26, 338,513.20 and 143,309.80
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Solution
The fourth proportional to 245,342.26, 338,513.20 and 143,309.80 is: 197,732.99
Step by Step Solution
- Step 1: Write the proportion equation
245,342.26 : 338,513.20 = 143,309.80 : x - Step 2: Convert to fraction form
245,342.26/338,513.20 = 143,309.80/x - Step 3: Cross multiply
245,342.26x = 338,513.20 × 143,309.80 - Step 4: Simplify right side
245,342.26x = 48,512,258,989.36 - Step 5: Solve for x
x = 48,512,258,989.36/245,342.26 - Step 6: Final answer
x = 197,732.99
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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.