Finding the Fourth Proportional to 326,889.12, 490,365.48 and 127,225.74
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Solution
The fourth proportional to 326,889.12, 490,365.48 and 127,225.74 is: 190,850.99
Step by Step Solution
- Step 1: Write the proportion equation
326,889.12 : 490,365.48 = 127,225.74 : x - Step 2: Convert to fraction form
326,889.12/490,365.48 = 127,225.74/x - Step 3: Cross multiply
326,889.12x = 490,365.48 × 127,225.74 - Step 4: Simplify right side
326,889.12x = 62,387,111,063.46 - Step 5: Solve for x
x = 62,387,111,063.46/326,889.12 - Step 6: Final answer
x = 190,850.99
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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.