Finding the Fourth Proportional to 331,415.10, 497,122.65 and 121,203.90
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Solution
The fourth proportional to 331,415.10, 497,122.65 and 121,203.90 is: 181,805.85
Step by Step Solution
- Step 1: Write the proportion equation
331,415.10 : 497,122.65 = 121,203.90 : x - Step 2: Convert to fraction form
331,415.10/497,122.65 = 121,203.90/x - Step 3: Cross multiply
331,415.10x = 497,122.65 × 121,203.90 - Step 4: Simplify right side
331,415.10x = 60,253,203,958.34 - Step 5: Solve for x
x = 60,253,203,958.34/331,415.10 - Step 6: Final answer
x = 181,805.85
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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.