Finding the Fourth Proportional to 153,718.92, 211,273.21 and 135,704.52
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Solution
The fourth proportional to 153,718.92, 211,273.21 and 135,704.52 is: 186,513.99
Step by Step Solution
- Step 1: Write the proportion equation
153,718.92 : 211,273.21 = 135,704.52 : x - Step 2: Convert to fraction form
153,718.92/211,273.21 = 135,704.52/x - Step 3: Cross multiply
153,718.92x = 211,273.21 × 135,704.52 - Step 4: Simplify right side
153,718.92x = 28,670,729,551.91 - Step 5: Solve for x
x = 28,670,729,551.91/153,718.92 - Step 6: Final answer
x = 186,513.99
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.