Finding the Fourth Proportional to 305,463.99, 457,584.57 and 145,695.45
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Solution
The fourth proportional to 305,463.99, 457,584.57 and 145,695.45 is: 218,251.55
Step by Step Solution
- Step 1: Write the proportion equation
305,463.99 : 457,584.57 = 145,695.45 : x - Step 2: Convert to fraction form
305,463.99/457,584.57 = 145,695.45/x - Step 3: Cross multiply
305,463.99x = 457,584.57 × 145,695.45 - Step 4: Simplify right side
305,463.99x = 66,667,989,839.21 - Step 5: Solve for x
x = 66,667,989,839.21/305,463.99 - Step 6: Final answer
x = 218,251.55
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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.