Finding the Fourth Proportional to 212,057.68, 292,517.58 and 127,125.40
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Solution
The fourth proportional to 212,057.68, 292,517.58 and 127,125.40 is: 175,359.90
Step by Step Solution
- Step 1: Write the proportion equation
212,057.68 : 292,517.58 = 127,125.40 : x - Step 2: Convert to fraction form
212,057.68/292,517.58 = 127,125.40/x - Step 3: Cross multiply
212,057.68x = 292,517.58 × 127,125.40 - Step 4: Simplify right side
212,057.68x = 37,186,414,364.53 - Step 5: Solve for x
x = 37,186,414,364.53/212,057.68 - Step 6: Final answer
x = 175,359.90
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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.