Finding the Fourth Proportional to 212,866.30, 318,910.65 and 173,208.70
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Solution
The fourth proportional to 212,866.30, 318,910.65 and 173,208.70 is: 259,496.68
Step by Step Solution
- Step 1: Write the proportion equation
212,866.30 : 318,910.65 = 173,208.70 : x - Step 2: Convert to fraction form
212,866.30/318,910.65 = 173,208.70/x - Step 3: Cross multiply
212,866.30x = 318,910.65 × 173,208.70 - Step 4: Simplify right side
212,866.30x = 55,238,099,102.66 - Step 5: Solve for x
x = 55,238,099,102.66/212,866.30 - Step 6: Final answer
x = 259,496.68
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.