Finding the Fourth Proportional to 298,609.36, 447,911.29 and 121,074.17
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Solution
The fourth proportional to 298,609.36, 447,911.29 and 121,074.17 is: 181,610.14
Step by Step Solution
- Step 1: Write the proportion equation
298,609.36 : 447,911.29 = 121,074.17 : x - Step 2: Convert to fraction form
298,609.36/447,911.29 = 121,074.17/x - Step 3: Cross multiply
298,609.36x = 447,911.29 × 121,074.17 - Step 4: Simplify right side
298,609.36x = 54,230,487,182.44 - Step 5: Solve for x
x = 54,230,487,182.44/298,609.36 - Step 6: Final answer
x = 181,610.14
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.