Finding the Fourth Proportional to 212,432.68, 293,163.70 and 115,642.98
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Solution
The fourth proportional to 212,432.68, 293,163.70 and 115,642.98 is: 159,590.91
Step by Step Solution
- Step 1: Write the proportion equation
212,432.68 : 293,163.70 = 115,642.98 : x - Step 2: Convert to fraction form
212,432.68/293,163.70 = 115,642.98/x - Step 3: Cross multiply
212,432.68x = 293,163.70 × 115,642.98 - Step 4: Simplify right side
212,432.68x = 33,902,323,895.83 - Step 5: Solve for x
x = 33,902,323,895.83/212,432.68 - Step 6: Final answer
x = 159,590.91
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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.