Finding the Fourth Proportional to 212,997.33, 319,557.42 and 68,899.95
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Solution
The fourth proportional to 212,997.33, 319,557.42 and 68,899.95 is: 103,369.79
Step by Step Solution
- Step 1: Write the proportion equation
212,997.33 : 319,557.42 = 68,899.95 : x - Step 2: Convert to fraction form
212,997.33/319,557.42 = 68,899.95/x - Step 3: Cross multiply
212,997.33x = 319,557.42 × 68,899.95 - Step 4: Simplify right side
212,997.33x = 22,017,490,260.13 - Step 5: Solve for x
x = 22,017,490,260.13/212,997.33 - Step 6: Final answer
x = 103,369.79
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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.