Finding the Fourth Proportional to 313,738.05, 432,958.38 and 170,498.10
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Solution
The fourth proportional to 313,738.05, 432,958.38 and 170,498.10 is: 235,287.31
Step by Step Solution
- Step 1: Write the proportion equation
313,738.05 : 432,958.38 = 170,498.10 : x - Step 2: Convert to fraction form
313,738.05/432,958.38 = 170,498.10/x - Step 3: Cross multiply
313,738.05x = 432,958.38 × 170,498.10 - Step 4: Simplify right side
313,738.05x = 73,818,581,169.08 - Step 5: Solve for x
x = 73,818,581,169.08/313,738.05 - Step 6: Final answer
x = 235,287.31
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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.