Finding the Fourth Proportional to 201,844.80, 302,767.20 and 138,859.20
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Solution
The fourth proportional to 201,844.80, 302,767.20 and 138,859.20 is: 208,288.80
Step by Step Solution
- Step 1: Write the proportion equation
201,844.80 : 302,767.20 = 138,859.20 : x - Step 2: Convert to fraction form
201,844.80/302,767.20 = 138,859.20/x - Step 3: Cross multiply
201,844.80x = 302,767.20 × 138,859.20 - Step 4: Simplify right side
201,844.80x = 42,042,011,178.24 - Step 5: Solve for x
x = 42,042,011,178.24/201,844.80 - Step 6: Final answer
x = 208,288.80
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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.