Finding the Fourth Proportional to 261,771.08, 392,656.64 and 74,782.58
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Solution
The fourth proportional to 261,771.08, 392,656.64 and 74,782.58 is: 112,173.88
Step by Step Solution
- Step 1: Write the proportion equation
261,771.08 : 392,656.64 = 74,782.58 : x - Step 2: Convert to fraction form
261,771.08/392,656.64 = 74,782.58/x - Step 3: Cross multiply
261,771.08x = 392,656.64 × 74,782.58 - Step 4: Simplify right side
261,771.08x = 29,363,876,593.33 - Step 5: Solve for x
x = 29,363,876,593.33/261,771.08 - Step 6: Final answer
x = 112,173.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.