Finding the Fourth Proportional to 319,497.70, 440,906.79 and 176,257.74
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Solution
The fourth proportional to 319,497.70, 440,906.79 and 176,257.74 is: 243,235.66
Step by Step Solution
- Step 1: Write the proportion equation
319,497.70 : 440,906.79 = 176,257.74 : x - Step 2: Convert to fraction form
319,497.70/440,906.79 = 176,257.74/x - Step 3: Cross multiply
319,497.70x = 440,906.79 × 176,257.74 - Step 4: Simplify right side
319,497.70x = 77,713,234,190.32 - Step 5: Solve for x
x = 77,713,234,190.32/319,497.70 - Step 6: Final answer
x = 243,235.66
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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.