Finding the Fourth Proportional to 239,343.36, 358,896.57 and 139,528.68
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Solution
The fourth proportional to 239,343.36, 358,896.57 and 139,528.68 is: 209,223.96
Step by Step Solution
- Step 1: Write the proportion equation
239,343.36 : 358,896.57 = 139,528.68 : x - Step 2: Convert to fraction form
239,343.36/358,896.57 = 139,528.68/x - Step 3: Cross multiply
239,343.36x = 358,896.57 × 139,528.68 - Step 4: Simplify right side
239,343.36x = 50,076,364,668.63 - Step 5: Solve for x
x = 50,076,364,668.63/239,343.36 - Step 6: Final answer
x = 209,223.96
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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.