Finding the Fourth Proportional to 312,860.16, 431,745.66 and 169,619.76
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Solution
The fourth proportional to 312,860.16, 431,745.66 and 169,619.76 is: 234,074.53
Step by Step Solution
- Step 1: Write the proportion equation
312,860.16 : 431,745.66 = 169,619.76 : x - Step 2: Convert to fraction form
312,860.16/431,745.66 = 169,619.76/x - Step 3: Cross multiply
312,860.16x = 431,745.66 × 169,619.76 - Step 4: Simplify right side
312,860.16x = 73,232,595,230.24 - Step 5: Solve for x
x = 73,232,595,230.24/312,860.16 - Step 6: Final answer
x = 234,074.53
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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.