Finding the Fourth Proportional to 422,493.51, 633,839.97 and 138,182.99
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Solution
The fourth proportional to 422,493.51, 633,839.97 and 138,182.99 is: 207,307.09
Step by Step Solution
- Step 1: Write the proportion equation
422,493.51 : 633,839.97 = 138,182.99 : x - Step 2: Convert to fraction form
422,493.51/633,839.97 = 138,182.99/x - Step 3: Cross multiply
422,493.51x = 633,839.97 × 138,182.99 - Step 4: Simplify right side
422,493.51x = 87,585,899,066.91 - Step 5: Solve for x
x = 87,585,899,066.91/422,493.51 - Step 6: Final answer
x = 207,307.09
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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.