Finding the Fourth Proportional to 172,313.10, 258,481.98 and 45,952.68
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Solution
The fourth proportional to 172,313.10, 258,481.98 and 45,952.68 is: 68,932.31
Step by Step Solution
- Step 1: Write the proportion equation
172,313.10 : 258,481.98 = 45,952.68 : x - Step 2: Convert to fraction form
172,313.10/258,481.98 = 45,952.68/x - Step 3: Cross multiply
172,313.10x = 258,481.98 × 45,952.68 - Step 4: Simplify right side
172,313.10x = 11,877,939,712.71 - Step 5: Solve for x
x = 11,877,939,712.71/172,313.10 - Step 6: Final answer
x = 68,932.31
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1.5x scale
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.