Finding the Fourth Proportional to 205,869.80, 284,035.58 and 115,211.36
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Solution
The fourth proportional to 205,869.80, 284,035.58 and 115,211.36 is: 158,955.44
Step by Step Solution
- Step 1: Write the proportion equation
205,869.80 : 284,035.58 = 115,211.36 : x - Step 2: Convert to fraction form
205,869.80/284,035.58 = 115,211.36/x - Step 3: Cross multiply
205,869.80x = 284,035.58 × 115,211.36 - Step 4: Simplify right side
205,869.80x = 32,724,124,884.13 - Step 5: Solve for x
x = 32,724,124,884.13/205,869.80 - Step 6: Final answer
x = 158,955.44
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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.