Finding the Fourth Proportional to 259,625.80, 389,438.70 and 119,657.80
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Solution
The fourth proportional to 259,625.80, 389,438.70 and 119,657.80 is: 179,486.70
Step by Step Solution
- Step 1: Write the proportion equation
259,625.80 : 389,438.70 = 119,657.80 : x - Step 2: Convert to fraction form
259,625.80/389,438.70 = 119,657.80/x - Step 3: Cross multiply
259,625.80x = 389,438.70 × 119,657.80 - Step 4: Simplify right side
259,625.80x = 46,599,378,076.86 - Step 5: Solve for x
x = 46,599,378,076.86/259,625.80 - Step 6: Final answer
x = 179,486.70
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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.