Finding the Fourth Proportional to 307,644.20, 460,688.70 and 201,890.60
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Solution
The fourth proportional to 307,644.20, 460,688.70 and 201,890.60 is: 302,325.60
Step by Step Solution
- Step 1: Write the proportion equation
307,644.20 : 460,688.70 = 201,890.60 : x - Step 2: Convert to fraction form
307,644.20/460,688.70 = 201,890.60/x - Step 3: Cross multiply
307,644.20x = 460,688.70 × 201,890.60 - Step 4: Simplify right side
307,644.20x = 93,008,718,056.22 - Step 5: Solve for x
x = 93,008,718,056.22/307,644.20 - Step 6: Final answer
x = 302,325.60
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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.