Finding the Fourth Proportional to 326,123.01, 449,529.12 and 257,099.94
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Solution
The fourth proportional to 326,123.01, 449,529.12 and 257,099.94 is: 354,387.47
Step by Step Solution
- Step 1: Write the proportion equation
326,123.01 : 449,529.12 = 257,099.94 : x - Step 2: Convert to fraction form
326,123.01/449,529.12 = 257,099.94/x - Step 3: Cross multiply
326,123.01x = 449,529.12 × 257,099.94 - Step 4: Simplify right side
326,123.01x = 115,573,909,780.25 - Step 5: Solve for x
x = 115,573,909,780.25/326,123.01 - Step 6: Final answer
x = 354,387.47
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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.