Finding the Fourth Proportional to 318,645.20, 440,124.36 and 233,627.60
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Solution
The fourth proportional to 318,645.20, 440,124.36 and 233,627.60 is: 322,694.95
Step by Step Solution
- Step 1: Write the proportion equation
318,645.20 : 440,124.36 = 233,627.60 : x - Step 2: Convert to fraction form
318,645.20/440,124.36 = 233,627.60/x - Step 3: Cross multiply
318,645.20x = 440,124.36 × 233,627.60 - Step 4: Simplify right side
318,645.20x = 102,825,197,928.34 - Step 5: Solve for x
x = 102,825,197,928.34/318,645.20 - Step 6: Final answer
x = 322,694.95
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.