Finding the Fourth Proportional to 212,655.12, 293,432.04 and 120,760.08
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Solution
The fourth proportional to 212,655.12, 293,432.04 and 120,760.08 is: 166,630.72
Step by Step Solution
- Step 1: Write the proportion equation
212,655.12 : 293,432.04 = 120,760.08 : x - Step 2: Convert to fraction form
212,655.12/293,432.04 = 120,760.08/x - Step 3: Cross multiply
212,655.12x = 293,432.04 × 120,760.08 - Step 4: Simplify right side
212,655.12x = 35,434,876,624.96 - Step 5: Solve for x
x = 35,434,876,624.96/212,655.12 - Step 6: Final answer
x = 166,630.72
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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.