Finding the Fourth Proportional to 308,076.80, 462,115.20 and 97,731.20
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Solution
The fourth proportional to 308,076.80, 462,115.20 and 97,731.20 is: 146,596.80
Step by Step Solution
- Step 1: Write the proportion equation
308,076.80 : 462,115.20 = 97,731.20 : x - Step 2: Convert to fraction form
308,076.80/462,115.20 = 97,731.20/x - Step 3: Cross multiply
308,076.80x = 462,115.20 × 97,731.20 - Step 4: Simplify right side
308,076.80x = 45,163,073,034.24 - Step 5: Solve for x
x = 45,163,073,034.24/308,076.80 - Step 6: Final answer
x = 146,596.80
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1.5x scale
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.