Finding the Fourth Proportional to 201,957.40, 302,936.10 and 68,987.80
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Solution
The fourth proportional to 201,957.40, 302,936.10 and 68,987.80 is: 103,481.70
Step by Step Solution
- Step 1: Write the proportion equation
201,957.40 : 302,936.10 = 68,987.80 : x - Step 2: Convert to fraction form
201,957.40/302,936.10 = 68,987.80/x - Step 3: Cross multiply
201,957.40x = 302,936.10 × 68,987.80 - Step 4: Simplify right side
201,957.40x = 20,898,895,079.58 - Step 5: Solve for x
x = 20,898,895,079.58/201,957.40 - Step 6: Final answer
x = 103,481.70
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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.