Finding the Fourth Proportional to 299,511.25, 413,278.55 and 172,163.05
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Solution
The fourth proportional to 299,511.25, 413,278.55 and 172,163.05 is: 237,558.00
Step by Step Solution
- Step 1: Write the proportion equation
299,511.25 : 413,278.55 = 172,163.05 : x - Step 2: Convert to fraction form
299,511.25/413,278.55 = 172,163.05/x - Step 3: Cross multiply
299,511.25x = 413,278.55 × 172,163.05 - Step 4: Simplify right side
299,511.25x = 71,151,294,806.76 - Step 5: Solve for x
x = 71,151,294,806.76/299,511.25 - Step 6: Final answer
x = 237,558.00
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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.