Finding the Fourth Proportional to 302,142.64, 453,213.97 and 142,119.09
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Solution
The fourth proportional to 302,142.64, 453,213.97 and 142,119.09 is: 213,178.64
Step by Step Solution
- Step 1: Write the proportion equation
302,142.64 : 453,213.97 = 142,119.09 : x - Step 2: Convert to fraction form
302,142.64/453,213.97 = 142,119.09/x - Step 3: Cross multiply
302,142.64x = 453,213.97 × 142,119.09 - Step 4: Simplify right side
302,142.64x = 64,410,356,991.69 - Step 5: Solve for x
x = 64,410,356,991.69/302,142.64 - Step 6: Final answer
x = 213,178.64
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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.