Finding the Fourth Proportional to 205,694.79, 283,885.10 and 115,055.79
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Solution
The fourth proportional to 205,694.79, 283,885.10 and 115,055.79 is: 158,791.70
Step by Step Solution
- Step 1: Write the proportion equation
205,694.79 : 283,885.10 = 115,055.79 : x - Step 2: Convert to fraction form
205,694.79/283,885.10 = 115,055.79/x - Step 3: Cross multiply
205,694.79x = 283,885.10 × 115,055.79 - Step 4: Simplify right side
205,694.79x = 32,662,624,737.37 - Step 5: Solve for x
x = 32,662,624,737.37/205,694.79 - Step 6: Final answer
x = 158,791.70
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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.