Finding the Fourth Proportional to 218,784.75, 328,177.12 and 71,040.75
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Solution
The fourth proportional to 218,784.75, 328,177.12 and 71,040.75 is: 106,561.12
Step by Step Solution
- Step 1: Write the proportion equation
218,784.75 : 328,177.12 = 71,040.75 : x - Step 2: Convert to fraction form
218,784.75/328,177.12 = 71,040.75/x - Step 3: Cross multiply
218,784.75x = 328,177.12 × 71,040.75 - Step 4: Simplify right side
218,784.75x = 23,313,948,737.64 - Step 5: Solve for x
x = 23,313,948,737.64/218,784.75 - Step 6: Final answer
x = 106,561.12
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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.