Finding the Fourth Proportional to 314,880.80, 472,321.20 and 115,207.70
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Solution
The fourth proportional to 314,880.80, 472,321.20 and 115,207.70 is: 172,811.55
Step by Step Solution
- Step 1: Write the proportion equation
314,880.80 : 472,321.20 = 115,207.70 : x - Step 2: Convert to fraction form
314,880.80/472,321.20 = 115,207.70/x - Step 3: Cross multiply
314,880.80x = 472,321.20 × 115,207.70 - Step 4: Simplify right side
314,880.80x = 54,415,039,113.24 - Step 5: Solve for x
x = 54,415,039,113.24/314,880.80 - Step 6: Final answer
x = 172,811.55
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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.