Finding the Fourth Proportional to 212,923.76, 293,841.36 and 122,297.91
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Solution
The fourth proportional to 212,923.76, 293,841.36 and 122,297.91 is: 168,774.88
Step by Step Solution
- Step 1: Write the proportion equation
212,923.76 : 293,841.36 = 122,297.91 : x - Step 2: Convert to fraction form
212,923.76/293,841.36 = 122,297.91/x - Step 3: Cross multiply
212,923.76x = 293,841.36 × 122,297.91 - Step 4: Simplify right side
212,923.76x = 35,936,182,639.04 - Step 5: Solve for x
x = 35,936,182,639.04/212,923.76 - Step 6: Final answer
x = 168,774.88
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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.