Finding the Fourth Proportional to 314,968.20, 472,452.30 and 128,113.80
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Solution
The fourth proportional to 314,968.20, 472,452.30 and 128,113.80 is: 192,170.70
Step by Step Solution
- Step 1: Write the proportion equation
314,968.20 : 472,452.30 = 128,113.80 : x - Step 2: Convert to fraction form
314,968.20/472,452.30 = 128,113.80/x - Step 3: Cross multiply
314,968.20x = 472,452.30 × 128,113.80 - Step 4: Simplify right side
314,968.20x = 60,527,659,471.74 - Step 5: Solve for x
x = 60,527,659,471.74/314,968.20 - Step 6: Final answer
x = 192,170.70
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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.