Finding the Fourth Proportional to 228,717.61, 343,109.49 and 86,524.32
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Solution
The fourth proportional to 228,717.61, 343,109.49 and 86,524.32 is: 129,798.99
Step by Step Solution
- Step 1: Write the proportion equation
228,717.61 : 343,109.49 = 86,524.32 : x - Step 2: Convert to fraction form
228,717.61/343,109.49 = 86,524.32/x - Step 3: Cross multiply
228,717.61x = 343,109.49 × 86,524.32 - Step 4: Simplify right side
228,717.61x = 29,687,315,307.80 - Step 5: Solve for x
x = 29,687,315,307.80/228,717.61 - Step 6: Final answer
x = 129,798.99
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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.