Finding the Fourth Proportional to 261,997.74, 393,046.83 and 84,457.08
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Solution
The fourth proportional to 261,997.74, 393,046.83 and 84,457.08 is: 126,701.81
Step by Step Solution
- Step 1: Write the proportion equation
261,997.74 : 393,046.83 = 84,457.08 : x - Step 2: Convert to fraction form
261,997.74/393,046.83 = 84,457.08/x - Step 3: Cross multiply
261,997.74x = 393,046.83 × 84,457.08 - Step 4: Simplify right side
261,997.74x = 33,195,587,565.06 - Step 5: Solve for x
x = 33,195,587,565.06/261,997.74 - Step 6: Final answer
x = 126,701.81
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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.