Finding the Fourth Proportional to 197,195.99, 272,144.70 and 112,313.03
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Solution
The fourth proportional to 197,195.99, 272,144.70 and 112,313.03 is: 155,000.09
Step by Step Solution
- Step 1: Write the proportion equation
197,195.99 : 272,144.70 = 112,313.03 : x - Step 2: Convert to fraction form
197,195.99/272,144.70 = 112,313.03/x - Step 3: Cross multiply
197,195.99x = 272,144.70 × 112,313.03 - Step 4: Simplify right side
197,195.99x = 30,565,394,494.72 - Step 5: Solve for x
x = 30,565,394,494.72/197,195.99 - Step 6: Final answer
x = 155,000.09
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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.