Finding the Fourth Proportional to 208,090.24, 312,061.56 and 74,934.70
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Solution
The fourth proportional to 208,090.24, 312,061.56 and 74,934.70 is: 112,375.47
Step by Step Solution
- Step 1: Write the proportion equation
208,090.24 : 312,061.56 = 74,934.70 : x - Step 2: Convert to fraction form
208,090.24/312,061.56 = 74,934.70/x - Step 3: Cross multiply
208,090.24x = 312,061.56 × 74,934.70 - Step 4: Simplify right side
208,090.24x = 23,384,239,380.13 - Step 5: Solve for x
x = 23,384,239,380.13/208,090.24 - Step 6: Final answer
x = 112,375.47
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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.