Finding the Fourth Proportional to 212,420.24, 318,827.46 and 107,313.02
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Solution
The fourth proportional to 212,420.24, 318,827.46 and 107,313.02 is: 161,069.10
Step by Step Solution
- Step 1: Write the proportion equation
212,420.24 : 318,827.46 = 107,313.02 : x - Step 2: Convert to fraction form
212,420.24/318,827.46 = 107,313.02/x - Step 3: Cross multiply
212,420.24x = 318,827.46 × 107,313.02 - Step 4: Simplify right side
212,420.24x = 34,214,337,591.53 - Step 5: Solve for x
x = 34,214,337,591.53/212,420.24 - Step 6: Final answer
x = 161,069.10
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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.