Finding the Fourth Proportional to 326,021.33, 488,990.40 and 126,204.99
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Solution
The fourth proportional to 326,021.33, 488,990.40 and 126,204.99 is: 189,291.39
Step by Step Solution
- Step 1: Write the proportion equation
326,021.33 : 488,990.40 = 126,204.99 : x - Step 2: Convert to fraction form
326,021.33/488,990.40 = 126,204.99/x - Step 3: Cross multiply
326,021.33x = 488,990.40 × 126,204.99 - Step 4: Simplify right side
326,021.33x = 61,713,028,542.10 - Step 5: Solve for x
x = 61,713,028,542.10/326,021.33 - Step 6: Final answer
x = 189,291.39
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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.