Finding the Fourth Proportional to 318,950.20, 478,425.30 and 177,232.60
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Solution
The fourth proportional to 318,950.20, 478,425.30 and 177,232.60 is: 265,848.90
Step by Step Solution
- Step 1: Write the proportion equation
318,950.20 : 478,425.30 = 177,232.60 : x - Step 2: Convert to fraction form
318,950.20/478,425.30 = 177,232.60/x - Step 3: Cross multiply
318,950.20x = 478,425.30 × 177,232.60 - Step 4: Simplify right side
318,950.20x = 84,792,559,824.78 - Step 5: Solve for x
x = 84,792,559,824.78/318,950.20 - Step 6: Final answer
x = 265,848.90
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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.