Finding the Fourth Proportional to 323,749.80, 485,624.70 and 271,261.80
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Solution
The fourth proportional to 323,749.80, 485,624.70 and 271,261.80 is: 406,892.70
Step by Step Solution
- Step 1: Write the proportion equation
323,749.80 : 485,624.70 = 271,261.80 : x - Step 2: Convert to fraction form
323,749.80/485,624.70 = 271,261.80/x - Step 3: Cross multiply
323,749.80x = 485,624.70 × 271,261.80 - Step 4: Simplify right side
323,749.80x = 131,731,430,246.46 - Step 5: Solve for x
x = 131,731,430,246.46/323,749.80 - Step 6: Final answer
x = 406,892.70
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1.5x scale
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.