Finding the Fourth Proportional to 313,378.40, 432,462.48 and 170,138.36
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Solution
The fourth proportional to 313,378.40, 432,462.48 and 170,138.36 is: 234,791.09
Step by Step Solution
- Step 1: Write the proportion equation
313,378.40 : 432,462.48 = 170,138.36 : x - Step 2: Convert to fraction form
313,378.40/432,462.48 = 170,138.36/x - Step 3: Cross multiply
313,378.40x = 432,462.48 × 170,138.36 - Step 4: Simplify right side
313,378.40x = 73,578,457,108.73 - Step 5: Solve for x
x = 73,578,457,108.73/313,378.40 - Step 6: Final answer
x = 234,791.09
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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.