Finding the Fourth Proportional to 202,989.80, 304,484.70 and 84,621.80
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Solution
The fourth proportional to 202,989.80, 304,484.70 and 84,621.80 is: 126,932.70
Step by Step Solution
- Step 1: Write the proportion equation
202,989.80 : 304,484.70 = 84,621.80 : x - Step 2: Convert to fraction form
202,989.80/304,484.70 = 84,621.80/x - Step 3: Cross multiply
202,989.80x = 304,484.70 × 84,621.80 - Step 4: Simplify right side
202,989.80x = 25,766,043,386.46 - Step 5: Solve for x
x = 25,766,043,386.46/202,989.80 - Step 6: Final answer
x = 126,932.70
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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.