Finding the Fourth Proportional to 260,047.70, 389,415.45 and 207,559.70
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Solution
The fourth proportional to 260,047.70, 389,415.45 and 207,559.70 is: 310,815.88
Step by Step Solution
- Step 1: Write the proportion equation
260,047.70 : 389,415.45 = 207,559.70 : x - Step 2: Convert to fraction form
260,047.70/389,415.45 = 207,559.70/x - Step 3: Cross multiply
260,047.70x = 389,415.45 × 207,559.70 - Step 4: Simplify right side
260,047.70x = 80,826,953,977.37 - Step 5: Solve for x
x = 80,826,953,977.37/260,047.70 - Step 6: Final answer
x = 310,815.88
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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.