Finding the Fourth Proportional to 220,107.84, 330,292.92 and 79,877.40
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Solution
The fourth proportional to 220,107.84, 330,292.92 and 79,877.40 is: 119,863.70
Step by Step Solution
- Step 1: Write the proportion equation
220,107.84 : 330,292.92 = 79,877.40 : x - Step 2: Convert to fraction form
220,107.84/330,292.92 = 79,877.40/x - Step 3: Cross multiply
220,107.84x = 330,292.92 × 79,877.40 - Step 4: Simplify right side
220,107.84x = 26,382,939,688.01 - Step 5: Solve for x
x = 26,382,939,688.01/220,107.84 - Step 6: Final answer
x = 119,863.70
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1.5x scale
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.