Finding the Fourth Proportional to 212,064.34, 292,748.99 and 134,578.94
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Solution
The fourth proportional to 212,064.34, 292,748.99 and 134,578.94 is: 185,782.53
Step by Step Solution
- Step 1: Write the proportion equation
212,064.34 : 292,748.99 = 134,578.94 : x - Step 2: Convert to fraction form
212,064.34/292,748.99 = 134,578.94/x - Step 3: Cross multiply
212,064.34x = 292,748.99 × 134,578.94 - Step 4: Simplify right side
212,064.34x = 39,397,848,760.27 - Step 5: Solve for x
x = 39,397,848,760.27/212,064.34 - Step 6: Final answer
x = 185,782.53
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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.