Finding the Fourth Proportional to 259,751.70, 389,627.55 and 207,263.70
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Solution
The fourth proportional to 259,751.70, 389,627.55 and 207,263.70 is: 310,895.55
Step by Step Solution
- Step 1: Write the proportion equation
259,751.70 : 389,627.55 = 207,263.70 : x - Step 2: Convert to fraction form
259,751.70/389,627.55 = 207,263.70/x - Step 3: Cross multiply
259,751.70x = 389,627.55 × 207,263.70 - Step 4: Simplify right side
259,751.70x = 80,755,647,634.94 - Step 5: Solve for x
x = 80,755,647,634.94/259,751.70 - Step 6: Final answer
x = 310,895.55
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Similar ratio
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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.