Finding the Fourth Proportional to 370,121.86, 511,628.97 and 330,230.98
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Solution
The fourth proportional to 370,121.86, 511,628.97 and 330,230.98 is: 456,486.78
Step by Step Solution
- Step 1: Write the proportion equation
370,121.86 : 511,628.97 = 330,230.98 : x - Step 2: Convert to fraction form
370,121.86/511,628.97 = 330,230.98/x - Step 3: Cross multiply
370,121.86x = 511,628.97 × 330,230.98 - Step 4: Simplify right side
370,121.86x = 168,955,736,159.49 - Step 5: Solve for x
x = 168,955,736,159.49/370,121.86 - Step 6: Final answer
x = 456,486.78
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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.