Finding the Fourth Proportional to 175,315.20, 262,972.80 and 121,660.80
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Solution
The fourth proportional to 175,315.20, 262,972.80 and 121,660.80 is: 182,491.20
Step by Step Solution
- Step 1: Write the proportion equation
175,315.20 : 262,972.80 = 121,660.80 : x - Step 2: Convert to fraction form
175,315.20/262,972.80 = 121,660.80/x - Step 3: Cross multiply
175,315.20x = 262,972.80 × 121,660.80 - Step 4: Simplify right side
175,315.20x = 31,993,481,226.24 - Step 5: Solve for x
x = 31,993,481,226.24/175,315.20 - Step 6: Final answer
x = 182,491.20
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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.