Finding the Fourth Proportional to 197,701.85, 272,828.05 and 107,057.81
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Solution
The fourth proportional to 197,701.85, 272,828.05 and 107,057.81 is: 147,739.50
Step by Step Solution
- Step 1: Write the proportion equation
197,701.85 : 272,828.05 = 107,057.81 : x - Step 2: Convert to fraction form
197,701.85/272,828.05 = 107,057.81/x - Step 3: Cross multiply
197,701.85x = 272,828.05 × 107,057.81 - Step 4: Simplify right side
197,701.85x = 29,208,372,175.43 - Step 5: Solve for x
x = 29,208,372,175.43/197,701.85 - Step 6: Final answer
x = 147,739.50
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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.