Finding the Fourth Proportional to 321,968.70, 482,953.05 and 111,606.66
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Solution
The fourth proportional to 321,968.70, 482,953.05 and 111,606.66 is: 167,409.99
Step by Step Solution
- Step 1: Write the proportion equation
321,968.70 : 482,953.05 = 111,606.66 : x - Step 2: Convert to fraction form
321,968.70/482,953.05 = 111,606.66/x - Step 3: Cross multiply
321,968.70x = 482,953.05 × 111,606.66 - Step 4: Simplify right side
321,968.70x = 53,900,776,847.31 - Step 5: Solve for x
x = 53,900,776,847.31/321,968.70 - Step 6: Final answer
x = 167,409.99
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1.5x scale
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.