Finding the Fourth Proportional to 415,933.56, 623,944.08 and 135,472.68
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Solution
The fourth proportional to 415,933.56, 623,944.08 and 135,472.68 is: 203,223.27
Step by Step Solution
- Step 1: Write the proportion equation
415,933.56 : 623,944.08 = 135,472.68 : x - Step 2: Convert to fraction form
415,933.56/623,944.08 = 135,472.68/x - Step 3: Cross multiply
415,933.56x = 623,944.08 × 135,472.68 - Step 4: Simplify right side
415,933.56x = 84,527,376,687.73 - Step 5: Solve for x
x = 84,527,376,687.73/415,933.56 - Step 6: Final answer
x = 203,223.27
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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.