Finding the Fourth Proportional to 245,568.69, 338,779.97 and 140,737.12
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Solution
The fourth proportional to 245,568.69, 338,779.97 and 140,737.12 is: 194,157.15
Step by Step Solution
- Step 1: Write the proportion equation
245,568.69 : 338,779.97 = 140,737.12 : x - Step 2: Convert to fraction form
245,568.69/338,779.97 = 140,737.12/x - Step 3: Cross multiply
245,568.69x = 338,779.97 × 140,737.12 - Step 4: Simplify right side
245,568.69x = 47,678,917,291.49 - Step 5: Solve for x
x = 47,678,917,291.49/245,568.69 - Step 6: Final answer
x = 194,157.15
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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.