Finding the Fourth Proportional to 313,305.80, 432,369.84 and 170,065.68
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Solution
The fourth proportional to 313,305.80, 432,369.84 and 170,065.68 is: 234,694.89
Step by Step Solution
- Step 1: Write the proportion equation
313,305.80 : 432,369.84 = 170,065.68 : x - Step 2: Convert to fraction form
313,305.80/432,369.84 = 170,065.68/x - Step 3: Cross multiply
313,305.80x = 432,369.84 × 170,065.68 - Step 4: Simplify right side
313,305.80x = 73,531,270,851.09 - Step 5: Solve for x
x = 73,531,270,851.09/313,305.80 - Step 6: Final answer
x = 234,694.89
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1.5x scale
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.