Finding the Fourth Proportional to 321,239.74, 481,864.48 and 121,654.12
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Solution
The fourth proportional to 321,239.74, 481,864.48 and 121,654.12 is: 182,483.02
Step by Step Solution
- Step 1: Write the proportion equation
321,239.74 : 481,864.48 = 121,654.12 : x - Step 2: Convert to fraction form
321,239.74/481,864.48 = 121,654.12/x - Step 3: Cross multiply
321,239.74x = 481,864.48 × 121,654.12 - Step 4: Simplify right side
321,239.74x = 58,620,799,273.66 - Step 5: Solve for x
x = 58,620,799,273.66/321,239.74 - Step 6: Final answer
x = 182,483.02
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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.