Finding the Fourth Proportional to 395,811.68, 546,246.48 and 223,669.92
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Solution
The fourth proportional to 395,811.68, 546,246.48 and 223,669.92 is: 308,679.39
Step by Step Solution
- Step 1: Write the proportion equation
395,811.68 : 546,246.48 = 223,669.92 : x - Step 2: Convert to fraction form
395,811.68/546,246.48 = 223,669.92/x - Step 3: Cross multiply
395,811.68x = 546,246.48 × 223,669.92 - Step 4: Simplify right side
395,811.68x = 122,178,906,481.88 - Step 5: Solve for x
x = 122,178,906,481.88/395,811.68 - Step 6: Final answer
x = 308,679.39
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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.