Finding the Fourth Proportional to 173,813.80, 260,720.70 and 138,821.80
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Solution
The fourth proportional to 173,813.80, 260,720.70 and 138,821.80 is: 208,232.70
Step by Step Solution
- Step 1: Write the proportion equation
173,813.80 : 260,720.70 = 138,821.80 : x - Step 2: Convert to fraction form
173,813.80/260,720.70 = 138,821.80/x - Step 3: Cross multiply
173,813.80x = 260,720.70 × 138,821.80 - Step 4: Simplify right side
173,813.80x = 36,193,716,871.26 - Step 5: Solve for x
x = 36,193,716,871.26/173,813.80 - Step 6: Final answer
x = 208,232.70
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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.