Finding the Fourth Proportional to 402,311.68, 555,199.41 and 221,034.94
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Solution
The fourth proportional to 402,311.68, 555,199.41 and 221,034.94 is: 305,033.32
Step by Step Solution
- Step 1: Write the proportion equation
402,311.68 : 555,199.41 = 221,034.94 : x - Step 2: Convert to fraction form
402,311.68/555,199.41 = 221,034.94/x - Step 3: Cross multiply
402,311.68x = 555,199.41 × 221,034.94 - Step 4: Simplify right side
402,311.68x = 122,718,468,277.39 - Step 5: Solve for x
x = 122,718,468,277.39/402,311.68 - Step 6: Final answer
x = 305,033.32
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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.