Finding the Fourth Proportional to 369,180.96, 509,469.74 and 199,415.09
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Solution
The fourth proportional to 369,180.96, 509,469.74 and 199,415.09 is: 275,192.82
Step by Step Solution
- Step 1: Write the proportion equation
369,180.96 : 509,469.74 = 199,415.09 : x - Step 2: Convert to fraction form
369,180.96/509,469.74 = 199,415.09/x - Step 3: Cross multiply
369,180.96x = 509,469.74 × 199,415.09 - Step 4: Simplify right side
369,180.96x = 101,595,950,509.95 - Step 5: Solve for x
x = 101,595,950,509.95/369,180.96 - Step 6: Final answer
x = 275,192.82
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1.5x scale
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.