Finding the Fourth Proportional to 214,642.04, 321,963.05 and 74,400.66
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Solution
The fourth proportional to 214,642.04, 321,963.05 and 74,400.66 is: 111,600.99
Step by Step Solution
- Step 1: Write the proportion equation
214,642.04 : 321,963.05 = 74,400.66 : x - Step 2: Convert to fraction form
214,642.04/321,963.05 = 74,400.66/x - Step 3: Cross multiply
214,642.04x = 321,963.05 × 74,400.66 - Step 4: Simplify right side
214,642.04x = 23,954,263,601.61 - Step 5: Solve for x
x = 23,954,263,601.61/214,642.04 - Step 6: Final answer
x = 111,600.99
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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.