Finding the Fourth Proportional to 216,033.69, 298,043.35 and 135,320.70
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Solution
The fourth proportional to 216,033.69, 298,043.35 and 135,320.70 is: 186,690.48
Step by Step Solution
- Step 1: Write the proportion equation
216,033.69 : 298,043.35 = 135,320.70 : x - Step 2: Convert to fraction form
216,033.69/298,043.35 = 135,320.70/x - Step 3: Cross multiply
216,033.69x = 298,043.35 × 135,320.70 - Step 4: Simplify right side
216,033.69x = 40,331,434,634.57 - Step 5: Solve for x
x = 40,331,434,634.57/216,033.69 - Step 6: Final answer
x = 186,690.48
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.