Finding the Fourth Proportional to 402,604.02, 555,561.18 and 221,311.44
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Solution
The fourth proportional to 402,604.02, 555,561.18 and 221,311.44 is: 305,391.99
Step by Step Solution
- Step 1: Write the proportion equation
402,604.02 : 555,561.18 = 221,311.44 : x - Step 2: Convert to fraction form
402,604.02/555,561.18 = 221,311.44/x - Step 3: Cross multiply
402,604.02x = 555,561.18 × 221,311.44 - Step 4: Simplify right side
402,604.02x = 122,952,044,753.90 - Step 5: Solve for x
x = 122,952,044,753.90/402,604.02 - Step 6: Final answer
x = 305,391.99
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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.