Finding the Fourth Proportional to 212,678.21, 293,516.62 and 158,869.81
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Solution
The fourth proportional to 212,678.21, 293,516.62 and 158,869.81 is: 219,255.79
Step by Step Solution
- Step 1: Write the proportion equation
212,678.21 : 293,516.62 = 158,869.81 : x - Step 2: Convert to fraction form
212,678.21/293,516.62 = 158,869.81/x - Step 3: Cross multiply
212,678.21x = 293,516.62 × 158,869.81 - Step 4: Simplify right side
212,678.21x = 46,630,929,397.55 - Step 5: Solve for x
x = 46,630,929,397.55/212,678.21 - Step 6: Final answer
x = 219,255.79
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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.