Finding the Fourth Proportional to 186,534.99, 279,537.53 and 143,678.39
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Solution
The fourth proportional to 186,534.99, 279,537.53 and 143,678.39 is: 215,313.49
Step by Step Solution
- Step 1: Write the proportion equation
186,534.99 : 279,537.53 = 143,678.39 : x - Step 2: Convert to fraction form
186,534.99/279,537.53 = 143,678.39/x - Step 3: Cross multiply
186,534.99x = 279,537.53 × 143,678.39 - Step 4: Simplify right side
186,534.99x = 40,163,500,138.90 - Step 5: Solve for x
x = 40,163,500,138.90/186,534.99 - Step 6: Final answer
x = 215,313.49
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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.