Finding the Fourth Proportional to 218,565.33, 327,653.49 and 85,415.31
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Solution
The fourth proportional to 218,565.33, 327,653.49 and 85,415.31 is: 128,046.95
Step by Step Solution
- Step 1: Write the proportion equation
218,565.33 : 327,653.49 = 85,415.31 : x - Step 2: Convert to fraction form
218,565.33/327,653.49 = 85,415.31/x - Step 3: Cross multiply
218,565.33x = 327,653.49 × 85,415.31 - Step 4: Simplify right side
218,565.33x = 27,986,624,420.93 - Step 5: Solve for x
x = 27,986,624,420.93/218,565.33 - Step 6: Final answer
x = 128,046.95
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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.