Finding the Fourth Proportional to 202,074.18, 278,860.68 and 111,433.98
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Solution
The fourth proportional to 202,074.18, 278,860.68 and 111,433.98 is: 153,777.96
Step by Step Solution
- Step 1: Write the proportion equation
202,074.18 : 278,860.68 = 111,433.98 : x - Step 2: Convert to fraction form
202,074.18/278,860.68 = 111,433.98/x - Step 3: Cross multiply
202,074.18x = 278,860.68 × 111,433.98 - Step 4: Simplify right side
202,074.18x = 31,074,555,437.91 - Step 5: Solve for x
x = 31,074,555,437.91/202,074.18 - Step 6: Final answer
x = 153,777.96
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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.