Finding the Fourth Proportional to 259,009.12, 388,513.68 and 125,775.19
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Solution
The fourth proportional to 259,009.12, 388,513.68 and 125,775.19 is: 188,662.79
Step by Step Solution
- Step 1: Write the proportion equation
259,009.12 : 388,513.68 = 125,775.19 : x - Step 2: Convert to fraction form
259,009.12/388,513.68 = 125,775.19/x - Step 3: Cross multiply
259,009.12x = 388,513.68 × 125,775.19 - Step 4: Simplify right side
259,009.12x = 48,865,381,919.60 - Step 5: Solve for x
x = 48,865,381,919.60/259,009.12 - Step 6: Final answer
x = 188,662.79
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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.