Finding the Fourth Proportional to 305,285.63, 457,950.44 and 80,643.13
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Solution
The fourth proportional to 305,285.63, 457,950.44 and 80,643.13 is: 120,970.50
Step by Step Solution
- Step 1: Write the proportion equation
305,285.63 : 457,950.44 = 80,643.13 : x - Step 2: Convert to fraction form
305,285.63/457,950.44 = 80,643.13/x - Step 3: Cross multiply
305,285.63x = 457,950.44 × 80,643.13 - Step 4: Simplify right side
305,285.63x = 36,930,555,923.21 - Step 5: Solve for x
x = 36,930,555,923.21/305,285.63 - Step 6: Final answer
x = 120,970.50
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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.