Finding the Fourth Proportional to 396,871.30, 547,666.68 and 235,722.07
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Solution
The fourth proportional to 396,871.30, 547,666.68 and 235,722.07 is: 325,287.12
Step by Step Solution
- Step 1: Write the proportion equation
396,871.30 : 547,666.68 = 235,722.07 : x - Step 2: Convert to fraction form
396,871.30/547,666.68 = 235,722.07/x - Step 3: Cross multiply
396,871.30x = 547,666.68 × 235,722.07 - Step 4: Simplify right side
396,871.30x = 129,097,123,479.63 - Step 5: Solve for x
x = 129,097,123,479.63/396,871.30 - Step 6: Final answer
x = 325,287.12
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.