Finding the Fourth Proportional to 274,973.99, 379,425.62 and 154,105.79
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Solution
The fourth proportional to 274,973.99, 379,425.62 and 154,105.79 is: 212,644.42
Step by Step Solution
- Step 1: Write the proportion equation
274,973.99 : 379,425.62 = 154,105.79 : x - Step 2: Convert to fraction form
274,973.99/379,425.62 = 154,105.79/x - Step 3: Cross multiply
274,973.99x = 379,425.62 × 154,105.79 - Step 4: Simplify right side
274,973.99x = 58,471,684,145.81 - Step 5: Solve for x
x = 58,471,684,145.81/274,973.99 - Step 6: Final answer
x = 212,644.42
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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.