Finding the Fourth Proportional to 173,903.80, 260,855.70 and 138,911.80
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Solution
The fourth proportional to 173,903.80, 260,855.70 and 138,911.80 is: 208,367.70
Step by Step Solution
- Step 1: Write the proportion equation
173,903.80 : 260,855.70 = 138,911.80 : x - Step 2: Convert to fraction form
173,903.80/260,855.70 = 138,911.80/x - Step 3: Cross multiply
173,903.80x = 260,855.70 × 138,911.80 - Step 4: Simplify right side
173,903.80x = 36,235,934,827.26 - Step 5: Solve for x
x = 36,235,934,827.26/173,903.80 - Step 6: Final answer
x = 208,367.70
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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.