Finding the Fourth Proportional to 216,903.69, 299,324.16 and 121,410.36
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Solution
The fourth proportional to 216,903.69, 299,324.16 and 121,410.36 is: 167,544.66
Step by Step Solution
- Step 1: Write the proportion equation
216,903.69 : 299,324.16 = 121,410.36 : x - Step 2: Convert to fraction form
216,903.69/299,324.16 = 121,410.36/x - Step 3: Cross multiply
216,903.69x = 299,324.16 × 121,410.36 - Step 4: Simplify right side
216,903.69x = 36,341,054,022.30 - Step 5: Solve for x
x = 36,341,054,022.30/216,903.69 - Step 6: Final answer
x = 167,544.66
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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.