Finding the Fourth Proportional to 212,825.70, 319,238.55 and 202,457.70
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Solution
The fourth proportional to 212,825.70, 319,238.55 and 202,457.70 is: 303,686.55
Step by Step Solution
- Step 1: Write the proportion equation
212,825.70 : 319,238.55 = 202,457.70 : x - Step 2: Convert to fraction form
212,825.70/319,238.55 = 202,457.70/x - Step 3: Cross multiply
212,825.70x = 319,238.55 × 202,457.70 - Step 4: Simplify right side
212,825.70x = 64,632,302,584.34 - Step 5: Solve for x
x = 64,632,302,584.34/212,825.70 - Step 6: Final answer
x = 303,686.55
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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.