Finding the Fourth Proportional to 207,435.20, 310,461.60 and 190,846.40
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Solution
The fourth proportional to 207,435.20, 310,461.60 and 190,846.40 is: 285,633.68
Step by Step Solution
- Step 1: Write the proportion equation
207,435.20 : 310,461.60 = 190,846.40 : x - Step 2: Convert to fraction form
207,435.20/310,461.60 = 190,846.40/x - Step 3: Cross multiply
207,435.20x = 310,461.60 × 190,846.40 - Step 4: Simplify right side
207,435.20x = 59,250,478,698.24 - Step 5: Solve for x
x = 59,250,478,698.24/207,435.20 - Step 6: Final answer
x = 285,633.68
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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.