Finding the Fourth Proportional to 208,729.10, 313,155.92 and 148,056.26
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Solution
The fourth proportional to 208,729.10, 313,155.92 and 148,056.26 is: 222,128.55
Step by Step Solution
- Step 1: Write the proportion equation
208,729.10 : 313,155.92 = 148,056.26 : x - Step 2: Convert to fraction form
208,729.10/313,155.92 = 148,056.26/x - Step 3: Cross multiply
208,729.10x = 313,155.92 × 148,056.26 - Step 4: Simplify right side
208,729.10x = 46,364,693,116.42 - Step 5: Solve for x
x = 46,364,693,116.42/208,729.10 - Step 6: Final answer
x = 222,128.55
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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.