Finding the Fourth Proportional to 245,508.64, 338,777.98 and 138,076.38
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Solution
The fourth proportional to 245,508.64, 338,777.98 and 138,076.38 is: 190,531.94
Step by Step Solution
- Step 1: Write the proportion equation
245,508.64 : 338,777.98 = 138,076.38 : x - Step 2: Convert to fraction form
245,508.64/338,777.98 = 138,076.38/x - Step 3: Cross multiply
245,508.64x = 338,777.98 × 138,076.38 - Step 4: Simplify right side
245,508.64x = 46,777,236,756.92 - Step 5: Solve for x
x = 46,777,236,756.92/245,508.64 - Step 6: Final answer
x = 190,531.94
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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.