Finding the Fourth Proportional to 289,905.10, 434,201.55 and 183,616.90
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Solution
The fourth proportional to 289,905.10, 434,201.55 and 183,616.90 is: 275,009.80
Step by Step Solution
- Step 1: Write the proportion equation
289,905.10 : 434,201.55 = 183,616.90 : x - Step 2: Convert to fraction form
289,905.10/434,201.55 = 183,616.90/x - Step 3: Cross multiply
289,905.10x = 434,201.55 × 183,616.90 - Step 4: Simplify right side
289,905.10x = 79,726,742,586.20 - Step 5: Solve for x
x = 79,726,742,586.20/289,905.10 - Step 6: Final answer
x = 275,009.80
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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.