Finding the Fourth Proportional to 392,102.16, 588,106.50 and 107,821.60
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Solution
The fourth proportional to 392,102.16, 588,106.50 and 107,821.60 is: 161,719.55
Step by Step Solution
- Step 1: Write the proportion equation
392,102.16 : 588,106.50 = 107,821.60 : x - Step 2: Convert to fraction form
392,102.16/588,106.50 = 107,821.60/x - Step 3: Cross multiply
392,102.16x = 588,106.50 × 107,821.60 - Step 4: Simplify right side
392,102.16x = 63,410,583,800.40 - Step 5: Solve for x
x = 63,410,583,800.40/392,102.16 - Step 6: Final answer
x = 161,719.55
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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.