Finding the Fourth Proportional to 212,175.42, 292,719.20 and 121,482.92
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Solution
The fourth proportional to 212,175.42, 292,719.20 and 121,482.92 is: 167,598.98
Step by Step Solution
- Step 1: Write the proportion equation
212,175.42 : 292,719.20 = 121,482.92 : x - Step 2: Convert to fraction form
212,175.42/292,719.20 = 121,482.92/x - Step 3: Cross multiply
212,175.42x = 292,719.20 × 121,482.92 - Step 4: Simplify right side
212,175.42x = 35,560,383,156.06 - Step 5: Solve for x
x = 35,560,383,156.06/212,175.42 - Step 6: Final answer
x = 167,598.98
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1.5x scale
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.