Finding the Fourth Proportional to 210,026.67, 289,752.12 and 121,563.68
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Solution
The fourth proportional to 210,026.67, 289,752.12 and 121,563.68 is: 167,708.87
Step by Step Solution
- Step 1: Write the proportion equation
210,026.67 : 289,752.12 = 121,563.68 : x - Step 2: Convert to fraction form
210,026.67/289,752.12 = 121,563.68/x - Step 3: Cross multiply
210,026.67x = 289,752.12 × 121,563.68 - Step 4: Simplify right side
210,026.67x = 35,223,335,023.29 - Step 5: Solve for x
x = 35,223,335,023.29/210,026.67 - Step 6: Final answer
x = 167,708.87
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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.