Finding the Fourth Proportional to 212,432.49, 293,163.44 and 115,642.79
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Solution
The fourth proportional to 212,432.49, 293,163.44 and 115,642.79 is: 159,590.65
Step by Step Solution
- Step 1: Write the proportion equation
212,432.49 : 293,163.44 = 115,642.79 : x - Step 2: Convert to fraction form
212,432.49/293,163.44 = 115,642.79/x - Step 3: Cross multiply
212,432.49x = 293,163.44 × 115,642.79 - Step 4: Simplify right side
212,432.49x = 33,902,238,127.60 - Step 5: Solve for x
x = 33,902,238,127.60/212,432.49 - Step 6: Final answer
x = 159,590.65
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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.