Finding the Fourth Proportional to 290,757.86, 435,852.06 and 162,736.68
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Solution
The fourth proportional to 290,757.86, 435,852.06 and 162,736.68 is: 243,945.66
Step by Step Solution
- Step 1: Write the proportion equation
290,757.86 : 435,852.06 = 162,736.68 : x - Step 2: Convert to fraction form
290,757.86/435,852.06 = 162,736.68/x - Step 3: Cross multiply
290,757.86x = 435,852.06 × 162,736.68 - Step 4: Simplify right side
290,757.86x = 70,929,117,215.56 - Step 5: Solve for x
x = 70,929,117,215.56/290,757.86 - Step 6: Final answer
x = 243,945.66
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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.