Finding the Fourth Proportional to 205,869.09, 284,034.58 and 115,210.65
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Solution
The fourth proportional to 205,869.09, 284,034.58 and 115,210.65 is: 158,954.45
Step by Step Solution
- Step 1: Write the proportion equation
205,869.09 : 284,034.58 = 115,210.65 : x - Step 2: Convert to fraction form
205,869.09/284,034.58 = 115,210.65/x - Step 3: Cross multiply
205,869.09x = 284,034.58 × 115,210.65 - Step 4: Simplify right side
205,869.09x = 32,723,808,584.28 - Step 5: Solve for x
x = 32,723,808,584.28/205,869.09 - Step 6: Final answer
x = 158,954.45
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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.