Finding the Fourth Proportional to 210,272.88, 315,221.76 and 77,122.08
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Solution
The fourth proportional to 210,272.88, 315,221.76 and 77,122.08 is: 115,614.33
Step by Step Solution
- Step 1: Write the proportion equation
210,272.88 : 315,221.76 = 77,122.08 : x - Step 2: Convert to fraction form
210,272.88/315,221.76 = 77,122.08/x - Step 3: Cross multiply
210,272.88x = 315,221.76 × 77,122.08 - Step 4: Simplify right side
210,272.88x = 24,310,557,792.46 - Step 5: Solve for x
x = 24,310,557,792.46/210,272.88 - Step 6: Final answer
x = 115,614.33
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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.