Finding the Fourth Proportional to 313,170.10, 432,286.80 and 185,845.66
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Solution
The fourth proportional to 313,170.10, 432,286.80 and 185,845.66 is: 256,533.51
Step by Step Solution
- Step 1: Write the proportion equation
313,170.10 : 432,286.80 = 185,845.66 : x - Step 2: Convert to fraction form
313,170.10/432,286.80 = 185,845.66/x - Step 3: Cross multiply
313,170.10x = 432,286.80 × 185,845.66 - Step 4: Simplify right side
313,170.10x = 80,338,625,655.29 - Step 5: Solve for x
x = 80,338,625,655.29/313,170.10 - Step 6: Final answer
x = 256,533.51
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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.