Finding the Fourth Proportional to 212,132.97, 292,806.75 and 139,591.80
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Solution
The fourth proportional to 212,132.97, 292,806.75 and 139,591.80 is: 192,678.31
Step by Step Solution
- Step 1: Write the proportion equation
212,132.97 : 292,806.75 = 139,591.80 : x - Step 2: Convert to fraction form
212,132.97/292,806.75 = 139,591.80/x - Step 3: Cross multiply
212,132.97x = 292,806.75 × 139,591.80 - Step 4: Simplify right side
212,132.97x = 40,873,421,284.65 - Step 5: Solve for x
x = 40,873,421,284.65/212,132.97 - Step 6: Final answer
x = 192,678.31
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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.