Finding the Fourth Proportional to 319,397.96, 440,771.28 and 176,161.88
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Solution
The fourth proportional to 319,397.96, 440,771.28 and 176,161.88 is: 243,104.55
Step by Step Solution
- Step 1: Write the proportion equation
319,397.96 : 440,771.28 = 176,161.88 : x - Step 2: Convert to fraction form
319,397.96/440,771.28 = 176,161.88/x - Step 3: Cross multiply
319,397.96x = 440,771.28 × 176,161.88 - Step 4: Simplify right side
319,397.96x = 77,647,097,334.81 - Step 5: Solve for x
x = 77,647,097,334.81/319,397.96 - Step 6: Final answer
x = 243,104.55
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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.