Finding the Fourth Proportional to 230,855.80, 346,283.70 and 81,119.20
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Solution
The fourth proportional to 230,855.80, 346,283.70 and 81,119.20 is: 121,678.80
Step by Step Solution
- Step 1: Write the proportion equation
230,855.80 : 346,283.70 = 81,119.20 : x - Step 2: Convert to fraction form
230,855.80/346,283.70 = 81,119.20/x - Step 3: Cross multiply
230,855.80x = 346,283.70 × 81,119.20 - Step 4: Simplify right side
230,855.80x = 28,090,256,717.04 - Step 5: Solve for x
x = 28,090,256,717.04/230,855.80 - Step 6: Final answer
x = 121,678.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.