Finding the Fourth Proportional to 218,847.32, 328,147.86 and 69,059.70
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Solution
The fourth proportional to 218,847.32, 328,147.86 and 69,059.70 is: 103,550.70
Step by Step Solution
- Step 1: Write the proportion equation
218,847.32 : 328,147.86 = 69,059.70 : x - Step 2: Convert to fraction form
218,847.32/328,147.86 = 69,059.70/x - Step 3: Cross multiply
218,847.32x = 328,147.86 × 69,059.70 - Step 4: Simplify right side
218,847.32x = 22,661,792,767.24 - Step 5: Solve for x
x = 22,661,792,767.24/218,847.32 - Step 6: Final answer
x = 103,550.70
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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.