Finding the Fourth Proportional to 393,313.44, 542,819.19 and 223,573.08
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Solution
The fourth proportional to 393,313.44, 542,819.19 and 223,573.08 is: 308,557.36
Step by Step Solution
- Step 1: Write the proportion equation
393,313.44 : 542,819.19 = 223,573.08 : x - Step 2: Convert to fraction form
393,313.44/542,819.19 = 223,573.08/x - Step 3: Cross multiply
393,313.44x = 542,819.19 × 223,573.08 - Step 4: Simplify right side
393,313.44x = 121,359,758,191.41 - Step 5: Solve for x
x = 121,359,758,191.41/393,313.44 - Step 6: Final answer
x = 308,557.36
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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.