Finding the Fourth Proportional to 321,904.10, 482,856.15 and 202,153.70
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Solution
The fourth proportional to 321,904.10, 482,856.15 and 202,153.70 is: 303,230.55
Step by Step Solution
- Step 1: Write the proportion equation
321,904.10 : 482,856.15 = 202,153.70 : x - Step 2: Convert to fraction form
321,904.10/482,856.15 = 202,153.70/x - Step 3: Cross multiply
321,904.10x = 482,856.15 × 202,153.70 - Step 4: Simplify right side
321,904.10x = 97,611,157,290.26 - Step 5: Solve for x
x = 97,611,157,290.26/321,904.10 - Step 6: Final answer
x = 303,230.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.