Finding the Fourth Proportional to 320,444.68, 480,668.07 and 120,711.46
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Solution
The fourth proportional to 320,444.68, 480,668.07 and 120,711.46 is: 181,067.59
Step by Step Solution
- Step 1: Write the proportion equation
320,444.68 : 480,668.07 = 120,711.46 : x - Step 2: Convert to fraction form
320,444.68/480,668.07 = 120,711.46/x - Step 3: Cross multiply
320,444.68x = 480,668.07 × 120,711.46 - Step 4: Simplify right side
320,444.68x = 58,022,144,505.08 - Step 5: Solve for x
x = 58,022,144,505.08/320,444.68 - Step 6: Final answer
x = 181,067.59
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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.