Finding the Fourth Proportional to 396,599.68, 547,104.66 and 253,208.96
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Solution
The fourth proportional to 396,599.68, 547,104.66 and 253,208.96 is: 349,298.82
Step by Step Solution
- Step 1: Write the proportion equation
396,599.68 : 547,104.66 = 253,208.96 : x - Step 2: Convert to fraction form
396,599.68/547,104.66 = 253,208.96/x - Step 3: Cross multiply
396,599.68x = 547,104.66 × 253,208.96 - Step 4: Simplify right side
396,599.68x = 138,531,801,969.75 - Step 5: Solve for x
x = 138,531,801,969.75/396,599.68 - Step 6: Final answer
x = 349,298.82
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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.