Finding the Fourth Proportional to 212,998.41, 319,329.27 and 106,327.62
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Solution
The fourth proportional to 212,998.41, 319,329.27 and 106,327.62 is: 159,407.39
Step by Step Solution
- Step 1: Write the proportion equation
212,998.41 : 319,329.27 = 106,327.62 : x - Step 2: Convert to fraction form
212,998.41/319,329.27 = 106,327.62/x - Step 3: Cross multiply
212,998.41x = 319,329.27 × 106,327.62 - Step 4: Simplify right side
212,998.41x = 33,953,521,275.44 - Step 5: Solve for x
x = 33,953,521,275.44/212,998.41 - Step 6: Final answer
x = 159,407.39
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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.