Finding the Fourth Proportional to 307,728.36, 461,641.14 and 130,236.30
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Solution
The fourth proportional to 307,728.36, 461,641.14 and 130,236.30 is: 195,375.02
Step by Step Solution
- Step 1: Write the proportion equation
307,728.36 : 461,641.14 = 130,236.30 : x - Step 2: Convert to fraction form
307,728.36/461,641.14 = 130,236.30/x - Step 3: Cross multiply
307,728.36x = 461,641.14 × 130,236.30 - Step 4: Simplify right side
307,728.36x = 60,122,434,001.38 - Step 5: Solve for x
x = 60,122,434,001.38/307,728.36 - Step 6: Final answer
x = 195,375.02
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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.