Finding the Fourth Proportional to 201,987.40, 302,908.20 and 102,114.40
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Solution
The fourth proportional to 201,987.40, 302,908.20 and 102,114.40 is: 153,134.75
Step by Step Solution
- Step 1: Write the proportion equation
201,987.40 : 302,908.20 = 102,114.40 : x - Step 2: Convert to fraction form
201,987.40/302,908.20 = 102,114.40/x - Step 3: Cross multiply
201,987.40x = 302,908.20 × 102,114.40 - Step 4: Simplify right side
201,987.40x = 30,931,289,098.08 - Step 5: Solve for x
x = 30,931,289,098.08/201,987.40 - Step 6: Final answer
x = 153,134.75
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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.