Finding the Fourth Proportional to 307,889.20, 461,056.20 and 202,135.60
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Solution
The fourth proportional to 307,889.20, 461,056.20 and 202,135.60 is: 302,692.89
Step by Step Solution
- Step 1: Write the proportion equation
307,889.20 : 461,056.20 = 202,135.60 : x - Step 2: Convert to fraction form
307,889.20/461,056.20 = 202,135.60/x - Step 3: Cross multiply
307,889.20x = 461,056.20 × 202,135.60 - Step 4: Simplify right side
307,889.20x = 93,195,871,620.72 - Step 5: Solve for x
x = 93,195,871,620.72/307,889.20 - Step 6: Final answer
x = 302,692.89
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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.