Finding the Fourth Proportional to 190,465.62, 285,757.65 and 78,154.97
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Solution
The fourth proportional to 190,465.62, 285,757.65 and 78,154.97 is: 117,256.75
Step by Step Solution
- Step 1: Write the proportion equation
190,465.62 : 285,757.65 = 78,154.97 : x - Step 2: Convert to fraction form
190,465.62/285,757.65 = 78,154.97/x - Step 3: Cross multiply
190,465.62x = 285,757.65 × 78,154.97 - Step 4: Simplify right side
190,465.62x = 22,333,379,134.23 - Step 5: Solve for x
x = 22,333,379,134.23/190,465.62 - Step 6: Final answer
x = 117,256.75
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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.