Finding the Fourth Proportional to 281,582.81, 422,285.89 and 91,999.99
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Solution
The fourth proportional to 281,582.81, 422,285.89 and 91,999.99 is: 137,971.13
Step by Step Solution
- Step 1: Write the proportion equation
281,582.81 : 422,285.89 = 91,999.99 : x - Step 2: Convert to fraction form
281,582.81/422,285.89 = 91,999.99/x - Step 3: Cross multiply
281,582.81x = 422,285.89 × 91,999.99 - Step 4: Simplify right side
281,582.81x = 38,850,297,657.14 - Step 5: Solve for x
x = 38,850,297,657.14/281,582.81 - Step 6: Final answer
x = 137,971.13
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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.