Finding the Fourth Proportional to 197,814.87, 272,966.58 and 117,229.41
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Solution
The fourth proportional to 197,814.87, 272,966.58 and 117,229.41 is: 161,765.95
Step by Step Solution
- Step 1: Write the proportion equation
197,814.87 : 272,966.58 = 117,229.41 : x - Step 2: Convert to fraction form
197,814.87/272,966.58 = 117,229.41/x - Step 3: Cross multiply
197,814.87x = 272,966.58 × 117,229.41 - Step 4: Simplify right side
197,814.87x = 31,999,711,123.12 - Step 5: Solve for x
x = 31,999,711,123.12/197,814.87 - Step 6: Final answer
x = 161,765.95
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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.