Finding the Fourth Proportional to 369,449.21, 509,868.79 and 206,157.05
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Solution
The fourth proportional to 369,449.21, 509,868.79 and 206,157.05 is: 284,512.85
Step by Step Solution
- Step 1: Write the proportion equation
369,449.21 : 509,868.79 = 206,157.05 : x - Step 2: Convert to fraction form
369,449.21/509,868.79 = 206,157.05/x - Step 3: Cross multiply
369,449.21x = 509,868.79 × 206,157.05 - Step 4: Simplify right side
369,449.21x = 105,113,045,877.36 - Step 5: Solve for x
x = 105,113,045,877.36/369,449.21 - Step 6: Final answer
x = 284,512.85
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.