Finding the Fourth Proportional to 287,768.40, 431,614.80 and 88,108.80
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Solution
The fourth proportional to 287,768.40, 431,614.80 and 88,108.80 is: 132,151.63
Step by Step Solution
- Step 1: Write the proportion equation
287,768.40 : 431,614.80 = 88,108.80 : x - Step 2: Convert to fraction form
287,768.40/431,614.80 = 88,108.80/x - Step 3: Cross multiply
287,768.40x = 431,614.80 × 88,108.80 - Step 4: Simplify right side
287,768.40x = 38,029,062,090.24 - Step 5: Solve for x
x = 38,029,062,090.24/287,768.40 - Step 6: Final answer
x = 132,151.63
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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.