Finding the Fourth Proportional to 216,563.29, 298,858.01 and 121,069.99
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Solution
The fourth proportional to 216,563.29, 298,858.01 and 121,069.99 is: 167,076.96
Step by Step Solution
- Step 1: Write the proportion equation
216,563.29 : 298,858.01 = 121,069.99 : x - Step 2: Convert to fraction form
216,563.29/298,858.01 = 121,069.99/x - Step 3: Cross multiply
216,563.29x = 298,858.01 × 121,069.99 - Step 4: Simplify right side
216,563.29x = 36,182,736,282.12 - Step 5: Solve for x
x = 36,182,736,282.12/216,563.29 - Step 6: Final answer
x = 167,076.96
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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.