Finding the Fourth Proportional to 172,863.70, 259,295.55 and 154,201.30
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Solution
The fourth proportional to 172,863.70, 259,295.55 and 154,201.30 is: 231,301.95
Step by Step Solution
- Step 1: Write the proportion equation
172,863.70 : 259,295.55 = 154,201.30 : x - Step 2: Convert to fraction form
172,863.70/259,295.55 = 154,201.30/x - Step 3: Cross multiply
172,863.70x = 259,295.55 × 154,201.30 - Step 4: Simplify right side
172,863.70x = 39,983,710,894.22 - Step 5: Solve for x
x = 39,983,710,894.22/172,863.70 - Step 6: Final answer
x = 231,301.95
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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.