Finding the Fourth Proportional to 258,226.99, 387,340.79 and 80,734.93
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Solution
The fourth proportional to 258,226.99, 387,340.79 and 80,734.93 is: 121,102.49
Step by Step Solution
- Step 1: Write the proportion equation
258,226.99 : 387,340.79 = 80,734.93 : x - Step 2: Convert to fraction form
258,226.99/387,340.79 = 80,734.93/x - Step 3: Cross multiply
258,226.99x = 387,340.79 × 80,734.93 - Step 4: Simplify right side
258,226.99x = 31,271,930,194.77 - Step 5: Solve for x
x = 31,271,930,194.77/258,226.99 - Step 6: Final answer
x = 121,102.49
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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.