Finding the Fourth Proportional to 149,851.20, 206,779.68 and 82,778.88
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Solution
The fourth proportional to 149,851.20, 206,779.68 and 82,778.88 is: 114,226.58
Step by Step Solution
- Step 1: Write the proportion equation
149,851.20 : 206,779.68 = 82,778.88 : x - Step 2: Convert to fraction form
149,851.20/206,779.68 = 82,778.88/x - Step 3: Cross multiply
149,851.20x = 206,779.68 × 82,778.88 - Step 4: Simplify right side
149,851.20x = 17,116,990,317.16 - Step 5: Solve for x
x = 17,116,990,317.16/149,851.20 - Step 6: Final answer
x = 114,226.58
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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.