Finding the Fourth Proportional to 402,000.36, 554,735.61 and 220,711.26
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Solution
The fourth proportional to 402,000.36, 554,735.61 and 220,711.26 is: 304,567.88
Step by Step Solution
- Step 1: Write the proportion equation
402,000.36 : 554,735.61 = 220,711.26 : x - Step 2: Convert to fraction form
402,000.36/554,735.61 = 220,711.26/x - Step 3: Cross multiply
402,000.36x = 554,735.61 × 220,711.26 - Step 4: Simplify right side
402,000.36x = 122,436,395,449.97 - Step 5: Solve for x
x = 122,436,395,449.97/402,000.36 - Step 6: Final answer
x = 304,567.88
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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.