Finding the Fourth Proportional to 414,214.75, 621,329.69 and 129,898.95
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Solution
The fourth proportional to 414,214.75, 621,329.69 and 129,898.95 is: 194,850.80
Step by Step Solution
- Step 1: Write the proportion equation
414,214.75 : 621,329.69 = 129,898.95 : x - Step 2: Convert to fraction form
414,214.75/621,329.69 = 129,898.95/x - Step 3: Cross multiply
414,214.75x = 621,329.69 × 129,898.95 - Step 4: Simplify right side
414,214.75x = 80,710,074,334.83 - Step 5: Solve for x
x = 80,710,074,334.83/414,214.75 - Step 6: Final answer
x = 194,850.80
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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.